adv. java lab manual
DESCRIPTION
Advance Java ProgramTRANSCRIPT
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ROHIT BHATIA Advance Java.
08-CSE-133
Practical No: - 1
Aim: - Write a Program To Find Maximum of two numbers.
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ROHIT BHATIA Advance Java.
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PROGRAM
import java.io.*;
import java.util.*;
import java.math.*;
public class Maxof2{
public static void main(String args[])throws IOException{
int[] x=new int[1];
int[] y=new int[1];
BufferedReader in=new BufferedReader(new InputStreamReader(System.in));
System.out.println("Enter first no.:");
x[0]=Integer.parseInt(in.readLine());
System.out.println("Enter second no.:");
y[0]=Integer.parseInt(in.readLine());
if(x[0] > y[0])
System.out.println(x[0]+" is greater than "+y[0]);
else
System.out.println(y[0]+" is greater than "+x[0]);
}
}
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ROHIT BHATIA Advance Java.
08-CSE-133
OUTPUT
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ROHIT BHATIA Advance Java.
08-CSE-133
Practical No: - 2
Aim: - Write a Program To Find Minimum of two numbers.
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ROHIT BHATIA Advance Java.
08-CSE-133
PROGRAM
import java.io.*;
import java.util.*;
import java.math.*;
public class Minof2{
public static void main(String args[])throws IOException{
int[] x=new int[1];
int[] y=new int[1];
BufferedReader in=new BufferedReader(new InputStreamReader(System.in));
System.out.println("Enter first no.:");
x[0]=Integer.parseInt(in.readLine());
System.out.println("Enter second no.:");
y[0]=Integer.parseInt(in.readLine());
if(x[0] < y[0])
System.out.println(x[0]+" is smaller than "+y[0]);
else
System.out.println(y[0]+" is smaller than "+x[0]);
}
}
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ROHIT BHATIA Advance Java.
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OUTPUT
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ROHIT BHATIA Advance Java.
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Practical No: - 3
Aim: - Write a program that will read a float type value
From the keyboard and print the following output.
->Small Integer not less than the number.
->Given Number.
->Largest Integer not greater than the number.
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PROGRAM
class ValueFormat
{
public static void main(String args[])
{
double i = 34.32; //given number
System.out.println("Small Integer not greater than the number : "+Math.ceil(i));
System.out.println("Given Number : "+i);
System.out.println("Largest Integer not greater than the number : "+Math.floor(i));
}
}
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OUTPUT
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Practical No: - 4
Aim: - Write a program to generate five Random numbers
between 1 to 100, and it should not follow with
decimal point.
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PROGRAM
class RandomDemo{
public static void main(String args[]){
for(int i=1;i<=5;i++){
System.out.println((int)(Math.random()*100));
}
}
}
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OUTPUT
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Practical No: - 5
Aim: - Write a program to display a greet message according
to Marks obtained by student.
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PROGRAM
import java.io.*;
import java.util.*;
import java.math.*;
class SwitchDemo{
public static void main(String args[]) throws IOException{
int[] x=new int[1];
BufferedReader in=new BufferedReader(new InputStreamReader(System.in));
System.out.println("Enter Number.:");
x[0]=Integer.parseInt(in.readLine());
switch(x[0]/10){
case 10:
case 9:
case 8:
System.out.println("Excellent");
break;
case 7:
System.out.println("Very Good");
break;
case 6:
System.out.println("Good");
break;
case 5:
System.out.println("Work Hard");
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break;
case 4:
System.out.println("Poor");
break;
case 3:
case 2:
case 1:
case 0:
System.out.println("Very Poor");
break;
default:
System.out.println("Invalid value Entered");
}
}
}
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OUTPUT
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Practical No: - 6
Aim: - Write a program to find Sum & Product of a
given Digit.
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PROGRAM
class Sum_Product_ofDigit{
public static void main(String args[]){
int num = Integer.parseInt(args[0]); //taking value as command line
argument.
int temp = num,result=0;
//Logic for sum of digit
while(temp>0){
result = result + temp;
temp--;
}
System.out.println("Sum of Digit for "+num+" is : "+result);
//Logic for product of digit
temp = num;
result = 1;
while(temp > 0){
result = result * temp;
temp--; }
System.out.println("Product of Digit for "+num+" is : "+result);
}
}
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OUTPUT
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Practical No: - 7
Aim: - Write a program to find Factorial of Given number.
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PROGRAM
class Factorial{
public static void main(String args[]){
int num = Integer.parseInt(args[0]); //take argument as command line
int result = 1;
while(num>0){
result = result * num;
num--;
}
System.out.println("Factorial of Given no. is : "+result);
}
}
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ROHIT BHATIA Advance Java.
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OUTPUT
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Practical No: - 8
Aim: - Write a program to reverse the given number.
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PROGRAM
class Reverse{
public static void main(String args[]){
int num = Integer.parseInt(args[0]); //take argument as command line
int remainder, result=0;
while(num>0){
remainder = num%10;
result = result * 10 + remainder;
num = num/10;
}
System.out.println("Reverse number is : "+result);
}
}
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OUTPUT
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Practical No: - 9
Aim: - Write a program to show the use of Date functionality.
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PROGRAM
import java.text.DateFormat;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;
public class DateUtility {
/* Add Day/Month/Year to a Date
add() is used to add values to a Calendar object.
You specify which Calendar field is to be affected by the operation
(Calendar.YEAR, Calendar.MONTH, Calendar.DATE).
*/
public static void addToDate(){
System.out.println("In the ADD Operation");
// String DATE_FORMAT = "yyyy-MM-dd";
String DATE_FORMAT = "dd-MM-yyyy"; //Refer Java DOCS for
formats
java.text.SimpleDateFormat sdf = new
java.text.SimpleDateFormat(DATE_FORMAT);
Calendar c1 = Calendar.getInstance();
Date d1 = new Date();
System.out.println("Todays date in Calendar Format : "+c1);
System.out.println("c1.getTime() : "+c1.getTime());
System.out.println("c1.get(Calendar.YEAR): " + c1.get(Calendar.YEAR));
System.out.println("Todays date in Date Format : "+d1);
c1.set(1999,0 ,20); //(year,month,date)
System.out.println("c1.set(1999,0 ,20) : "+c1.getTime());
c1.add(Calendar.DATE,40);
System.out.println("Date + 20 days is : " + sdf.format(c1.getTime()));
System.out.println();
System.out.println();
}
/*Substract Day/Month/Year to a Date
roll() is used to substract values to a Calendar object.
You specify which Calendar field is to be affected by the operation
(Calendar.YEAR, Calendar.MONTH, Calendar.DATE).
Note: To substract, simply use a negative argument.
roll() does the same thing except you specify if you want to roll up (add 1)
or roll down (substract 1) to the specified Calendar field. The operation only
affects the specified field while add() adjusts other Calendar fields.
See the following example, roll() makes january rolls to december in the same
year while add() substract the YEAR field for the correct result
*/
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public static void subToDate(){
System.out.println("In the SUB Operation");
String DATE_FORMAT = "dd-MM-yyyy";
java.text.SimpleDateFormat sdf = new
java.text.SimpleDateFormat(DATE_FORMAT);
Calendar c1 = Calendar.getInstance();
c1.set(1999, 0 , 20);
System.out.println("Date is : " + sdf.format(c1.getTime()));
// roll down, substract 1 month
c1.roll(Calendar.MONTH, false);
System.out.println("Date roll down 1 month : " + sdf.format(c1.getTime()));
c1.set(1999, 0 , 20);
System.out.println("Date is : " + sdf.format(c1.getTime()));
c1.add(Calendar.MONTH, -1);
// substract 1 month
System.out.println("Date minus 1 month : " + sdf.format(c1.getTime()));
System.out.println();
System.out.println();
}
public static void daysBetween2Dates(){
Calendar c1 = Calendar.getInstance(); //new GregorianCalendar();
Calendar c2 = Calendar.getInstance(); //new GregorianCalendar();
c1.set(1999, 0 , 20);
c2.set(1999, 0 , 22);
System.out.println("Days Between "+c1.getTime()+"\t"+ c2.getTime()+" is");
System.out.println((c2.getTime().getTime() -
c1.getTime().getTime())/(24*3600*1000));
System.out.println();
System.out.println();
}
public static void daysInMonth() {
Calendar c1 = Calendar.getInstance(); //new GregorianCalendar();
c1.set(1999, 6 , 20);
int year = c1.get(Calendar.YEAR);
int month = c1.get(Calendar.MONTH);
// int days = c1.get(Calendar.DATE);
int [] daysInMonths = {31,28,31,30,31,30,31,31,30,31,30,31};
daysInMonths[1] += DateUtility.isLeapYear(year) ? 1 : 0;
System.out.println("Days in "+month+"th month for year "+year+" is "+
daysInMonths[c1.get(Calendar.MONTH)]);
System.out.println();
System.out.println();
}
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public static void getDayofTheDate() {
Date d1 = new Date();
String day = null;
DateFormat f = new SimpleDateFormat("EEEE");
try {
day = f.format(d1);
}
catch(Exception e) {
e.printStackTrace();
}
System.out.println("The dat for "+d1+" is "+day);
System.out.println();
System.out.println();
}
public static void validateAGivenDate() {
String dt = "20011223";
String invalidDt = "20031315";
String dateformat = "yyyyMMdd";
Date dt1=null , dt2=null;
try {
SimpleDateFormat sdf = new SimpleDateFormat(dateformat);
sdf.setLenient(false);
dt1 = sdf.parse(dt);
dt2 = sdf.parse(invalidDt);
System.out.println("Date is ok = " + dt1 + "(" + dt + ")");
}
catch (ParseException e) {
System.out.println(e.getMessage());
}
catch (IllegalArgumentException e) {
System.out.println("Invalid date");
}
System.out.println();
System.out.println();
}
public static void compare2Dates(){
SimpleDateFormat fm = new SimpleDateFormat("dd-MM-yyyy");
Calendar c1 = Calendar.getInstance();
Calendar c2 = Calendar.getInstance();
c1.set(2000, 02, 15);
c2.set(2001, 02, 15);
System.out.print(fm.format(c1.getTime())+" is ");
if(c1.before(c2)){
System.out.println("less than "+c2.getTime());
}else if(c1.after(c2)){
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System.out.println("greater than "+c2.getTime());
}else if(c1.equals(c2)){
System.out.println("is equal to "+fm.format(c2.getTime()));
}
System.out.println();
System.out.println();
}
public static boolean isLeapYear(int year){
if((year%100 != 0) || (year%400 == 0)){
return true;
}
return false;
}
public static void main(String args[]){
addToDate();
subToDate();
daysBetween2Dates(); //The "right" way would be to compute the julian
day number of both dates and then do the substraction.
daysInMonth();
validateAGivenDate();
compare2Dates();
getDayofTheDate();
}
}
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OUTPUT
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Practical No: - 10
Aim: - Write a program to show use of JFrame program
in Swing.
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PROGRAM
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
public class JFrameDemo {
public static void main(String s[]) {
JFrame frame = new JFrame("JFrame Source Demo");
// Add a window listner for close button
frame.addWindowListener(new WindowAdapter() {
public void windowClosing(WindowEvent e) {
System.exit(0);
}
});
// This is an empty content area in the frame
JLabel jlbempty = new JLabel("");
jlbempty.setPreferredSize(new Dimension(175, 100));
frame.getContentPane().add(jlbempty, BorderLayout.CENTER);
frame.pack();
frame.setVisible(true);
}
}
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OUTPUT
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Practical No: - 11
Aim: - Write a program to show use of JInternalFrame program
in Swing.
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PROGRAM
import javax.swing.JInternalFrame;
import javax.swing.JDesktopPane;
import javax.swing.JMenu;
import javax.swing.JMenuItem;
import javax.swing.JMenuBar;
import javax.swing.JFrame;
import java.awt.event.*;
import java.awt.*;
public class JInternalFrameDemo extends JFrame {
JDesktopPane jdpDesktop;
static int openFrameCount = 0;
public JInternalFrameDemo() {
super("JInternalFrame Usage Demo");
// Make the main window positioned as 50 pixels from each edge of the
// screen.
int inset = 50;
Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize();
setBounds(inset, inset, screenSize.width - inset * 2,
screenSize.height - inset * 2);
// Add a Window Exit Listener
addWindowListener(new WindowAdapter() {
public void windowClosing(WindowEvent e) {
System.exit(0);
}
});
// Create and Set up the GUI.
jdpDesktop = new JDesktopPane();
// A specialized layered pane to be used with JInternalFrames
createFrame(); // Create first window
setContentPane(jdpDesktop);
setJMenuBar(createMenuBar());
// Make dragging faster by setting drag mode to Outline
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jdpDesktop.putClientProperty("JDesktopPane.dragMode", "outline");
}
protected JMenuBar createMenuBar() {
JMenuBar menuBar = new JMenuBar();
JMenu menu = new JMenu("Frame");
menu.setMnemonic(KeyEvent.VK_N);
JMenuItem menuItem = new JMenuItem("New IFrame");
menuItem.setMnemonic(KeyEvent.VK_N);
menuItem.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
createFrame();
}
});
menu.add(menuItem);
menuBar.add(menu);
return menuBar;
}
protected void createFrame() {
MyInternalFrame frame = new MyInternalFrame();
frame.setVisible(true);
// Every JInternalFrame must be added to content pane using
JDesktopPane
jdpDesktop.add(frame);
try {
frame.setSelected(true);
} catch (java.beans.PropertyVetoException e) {
}
}
public static void main(String[] args) {
JInternalFrameDemo frame = new JInternalFrameDemo();
frame.setVisible(true);
}
class MyInternalFrame extends JInternalFrame {
static final int xPosition = 30, yPosition = 30;
public MyInternalFrame() {
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super("IFrame #" + (++openFrameCount), true, // resizable
true, // closable
true, // maximizable
true);// iconifiable
setSize(300, 300);
// Set the window's location.
setLocation(xPosition * openFrameCount, yPosition
* openFrameCount);
}
}
}
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OUTPUT
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Practical No: - 12
Aim: - Write a program to show use of JWindow program
in Swing.
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PROGRAM
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
public class JWindowDemo extends JWindow {
private int X = 0;
private int Y = 0;
public JWindowDemo() {
setBounds(60, 60, 100, 100);
addWindowListener(new WindowAdapter() {
public void windowClosing(WindowEvent e) {
System.exit(0); // An Exit Listener
}
});
// Print (X,Y) coordinates on Mouse Click
addMouseListener(new MouseAdapter() {
public void mousePressed(MouseEvent e) {
X = e.getX();
Y = e.getY();
System.out.println("The (X,Y) coordinate of window is ("+ X + "," + Y + ")");
}
});
addMouseMotionListener(new MouseMotionAdapter() {
public void mouseDragged(MouseEvent e) {
setLocation(getLocation().x + (e.getX() - X),
getLocation().y + (e.getY() - Y));
}
});
setVisible(true);
}
public static void main(String[] args) {
new JWindowDemo();
}
}
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OUTPUT
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Practical No: - 13
Aim: - Write a program to show use of JTextField program
in Swing.
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PROGRAM
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
public class JTextFieldDemo extends JFrame {
//Class Declarations
JTextField jtfText1, jtfUneditableText;
String disp = "";
TextHandler handler = null;
//Constructor
public JTextFieldDemo() {
super("TextField Test Demo");
Container container = getContentPane();
container.setLayout(new FlowLayout());
jtfText1 = new JTextField(10);
jtfUneditableText = new JTextField("Uneditable text field", 20);
jtfUneditableText.setEditable(false);
container.add(jtfText1);
container.add(jtfUneditableText);
handler = new TextHandler();
jtfText1.addActionListener(handler);
jtfUneditableText.addActionListener(handler);
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setSize(325, 100);
setVisible(true);
}
//Inner Class TextHandler
private class TextHandler implements ActionListener {
public void actionPerformed(ActionEvent e) {
if (e.getSource() == jtfText1) {
disp = "text1 : " + e.getActionCommand();
} else if (e.getSource() == jtfUneditableText) {
disp = "text3 : " + e.getActionCommand();
}
JOptionPane.showMessageDialog(null, disp);
}
}
//Main Program that starts Execution
public static void main(String args[]) {
JTextFieldDemo test = new JTextFieldDemo();
test.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
}
}
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OUTPUT
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Practical No: - 14
Aim: - Write a program to show use of JButton program
in Swing.
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PROGRAM
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.KeyEvent;
import java.net.URL;
import javax.swing.AbstractButton;
import javax.swing.ImageIcon;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;
public class JButtonDemo extends JPanel implements ActionListener {
protected static JButton jbnLeft, jbnMiddle, jbnRight;
public JButtonDemo() {
// Create Icons that can be used with the jButtons
ImageIcon leftButtonIcon = createImageIcon("rightarrow.JPG");
ImageIcon middleButtonIcon = createImageIcon("java-swing-
tutorial.JPG");
ImageIcon rightButtonIcon = createImageIcon("leftarrow.JPG");
jbnLeft = new JButton("Disable centre button", leftButtonIcon);
jbnLeft.setVerticalTextPosition(AbstractButton.CENTER);
jbnLeft.setHorizontalTextPosition(AbstractButton.LEADING);
jbnLeft.setMnemonic(KeyEvent.VK_D);
// Alt-D clicks the button
jbnLeft.setActionCommand("disable");
jbnLeft.setToolTipText("disable the Centre button."); // Adding Tool
// tips
jbnMiddle = new JButton("Centre button", middleButtonIcon);
jbnMiddle.setVerticalTextPosition(AbstractButton.BOTTOM);
jbnMiddle.setHorizontalTextPosition(AbstractButton.CENTER);
jbnMiddle.setMnemonic(KeyEvent.VK_M);
// Alt-M clicks the button
jbnMiddle.setToolTipText("Centre button");
jbnRight = new JButton("Enable centre button", rightButtonIcon);
// Use the default text position of CENTER, TRAILING (RIGHT).
jbnRight.setMnemonic(KeyEvent.VK_E);
// Alt-E clicks the button
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jbnRight.setActionCommand("enable");
jbnRight.setEnabled(false);
// Disable the Button at creation time
// Listen for actions on Left and Roght Buttons
jbnLeft.addActionListener(this);
jbnRight.addActionListener(this);
jbnRight.setToolTipText("Enable the Centre button.");
// Add Components to the frame, using the default FlowLayout.
add(jbnLeft);
add(jbnMiddle);
add(jbnRight);
}
public void actionPerformed(ActionEvent e) {
if ("disable".equals(e.getActionCommand())) {
jbnMiddle.setEnabled(false);
jbnLeft.setEnabled(false);
jbnRight.setEnabled(true);
} else {
jbnMiddle.setEnabled(true);
jbnLeft.setEnabled(true);
jbnRight.setEnabled(false);
}
}
// Returns an ImageIcon, or null if the path was invalid.
protected static ImageIcon createImageIcon(String path) {
URL imgURL = JButtonDemo.class.getResource(path);
if (imgURL != null) {
return new ImageIcon(imgURL);
} else {
System.err.println("Couldn't find image in system: " + path);
return null;
}
}
// Create the GUI and show it.
private static void createGUI() {
JFrame.setDefaultLookAndFeelDecorated(true);
// Create and set up the frame.
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JFrame frame = new JFrame("jButton usage demo");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
// Create and set up the content pane.
JButtonDemo buttonContentPane = new JButtonDemo();
buttonContentPane.setOpaque(true); // content panes must be opaque
frame.getRootPane().setDefaultButton(jbnLeft);
frame.setContentPane(buttonContentPane);
// Display the window.
frame.pack();
frame.setVisible(true);
}
public static void main(String[] args) {
javax.swing.SwingUtilities.invokeLater(new Runnable() {
public void run() {
createGUI();
}
});
}
}
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OUTPUT
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Practical No: - 15
Aim: - Write a program to show use of JCheckBox program
in Swing.
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PROGRAM
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
public class JCheckBoxDemo extends JPanel {
//Four accessory choices provide for 16 different combinations
JCheckBox jcbChin;
JCheckBox jcbGlasses;
JCheckBox jcbHair;
JCheckBox jcbTeeth;
/* The image for each combination is contained in a
separate image file whose name indicates the accessories.
The filenames are "geek-XXXX.gif" where XXXX can be one
* of the following 16 choices.
*/
StringBuffer choices;
JLabel jlbPicture;
CheckBoxListener myListener = null;
public JCheckBoxDemo() {
// Add an item listener for each of the check boxes.
// This is the listener class which contains business logic
myListener = new CheckBoxListener();
// Create check boxes with default selection true
jcbChin = new JCheckBox("Chin");
jcbChin.setMnemonic(KeyEvent.VK_C);
//Alt+C Checks/Unchecks the check Box
jcbChin.setSelected(true);
jcbChin.addItemListener(myListener);
jcbGlasses = new JCheckBox("Glasses");
jcbGlasses.setMnemonic(KeyEvent.VK_G);
//Alt+G Checks/Unchecks the check Box
jcbGlasses.setSelected(true);
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jcbGlasses.addItemListener(myListener);
jcbHair = new JCheckBox("Hair");
jcbHair.setMnemonic(KeyEvent.VK_H);
//Alt+H Checks/Unchecks the check Box
jcbHair.setSelected(true);
jcbHair.addItemListener(myListener);
jcbTeeth = new JCheckBox("Teeth");
jcbTeeth.setMnemonic(KeyEvent.VK_T);
//Alt+T Checks/Unchecks the check Box
jcbTeeth.setSelected(true);
jcbTeeth.addItemListener(myListener);
// Indicates what's on the geek.
choices = new StringBuffer("cght");//Default Image has all the parts.
// Set up the picture label
jlbPicture = new JLabel(new ImageIcon("geek-" +
choices.toString().trim() + ".gif"));
jlbPicture.setToolTipText(choices.toString().trim());
// Put the check boxes in a column in a panel
JPanel jplCheckBox = new JPanel();
jplCheckBox.setLayout(new GridLayout(0, 1)); //0 rows, 1 Column
jplCheckBox.add(jcbChin);
jplCheckBox.add(jcbGlasses);
jplCheckBox.add(jcbHair);
jplCheckBox.add(jcbTeeth);
setLayout(new BorderLayout());
add(jplCheckBox, BorderLayout.WEST);
add(jlbPicture, BorderLayout.CENTER);
setBorder(BorderFactory.createEmptyBorder(20,20,20,20));
}
//Listens to the check boxes events
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class CheckBoxListener implements ItemListener {
public void itemStateChanged(ItemEvent e) {
int index = 0;
char c = '-';
Object source = e.getSource();
if (source == jcbChin) {
index = 0;
c = 'c';
} else if (source == jcbGlasses) {
index = 1;
c = 'g';
} else if (source == jcbHair) {
index = 2;
c = 'h';
} else if (source == jcbTeeth) {
index = 3;
c = 't';
}
if (e.getStateChange() == ItemEvent.DESELECTED)
c = '-';
choices.setCharAt(index, c);
jlbPicture.setIcon(new ImageIcon("geek-"
+ choices.toString().trim() + ".gif"));
jlbPicture.setToolTipText(choices.toString());
}
}
public static void main(String s[]) {
JFrame frame = new JFrame("JCheckBox Usage Demo");
frame.addWindowListener(new WindowAdapter() {
public void windowClosing(WindowEvent e) {
System.exit(0);
}
});
frame.setContentPane(new JCheckBoxDemo());
frame.pack();
frame.setVisible(true); }}
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OUTPUT
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Practical No: - 16
Aim: - Write a program to show use of JComboBox program
in Swing.
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PROGRAM
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
public class JComboBoxDemo extends JPanel {
JLabel jlbPicture;
public JComboBoxDemo() {
String[] comboTypes = { "Numbers", "Alphabets", "Symbols" };
// Create the combo box, and set 2nd item as Default
JComboBox comboTypesList = new JComboBox(comboTypes);
comboTypesList.setSelectedIndex(2);
comboTypesList.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
JComboBox jcmbType = (JComboBox) e.getSource();
String cmbType = (String) jcmbType.getSelectedItem();
jlbPicture.setIcon(new ImageIcon(""
+ cmbType.trim().toLowerCase() + ".jpg"));
}
});
// Set up the picture
jlbPicture = new JLabel(new ImageIcon(""
+ comboTypes[comboTypesList.getSelectedIndex()] +
".jpg"));
jlbPicture.setBorder(BorderFactory.createEmptyBorder(10, 0, 0, 0));
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jlbPicture.setPreferredSize(new Dimension(177, 122 + 10));
// Layout the demo
setLayout(new BorderLayout());
add(comboTypesList, BorderLayout.NORTH);
add(jlbPicture, BorderLayout.SOUTH);
setBorder(BorderFactory.createEmptyBorder(20, 20, 20, 20));
}
public static void main(String s[]) {
JFrame frame = new JFrame("JComboBox Usage Demo");
frame.addWindowListener(new WindowAdapter() {
public void windowClosing(WindowEvent e) {
System.exit(0);
}
});
frame.setContentPane(new JComboBoxDemo());
frame.pack();
frame.setVisible(true);
}
}
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OUTPUT
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Practical No: - 17
Aim: - Write a program to show use of JList program in Swing.
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PROGRAM
import javax.swing.*;
import javax.swing.event.ListSelectionEvent;
import javax.swing.event.ListSelectionListener;
import java.awt.*;
import java.awt.event.*;
public class JListDemo extends JFrame {
JList list;
String[] listColorNames = { "black", "blue", "green", "yellow",
"white" };
Color[] listColorValues = { Color.BLACK, Color.BLUE, Color.GREEN,
Color.YELLOW, Color.WHITE };
Container contentpane;
public JListDemo() {
super("List Source Demo");
contentpane = getContentPane();
contentpane.setLayout(new FlowLayout());
list = new JList(listColorNames);
list.setSelectedIndex(0);
list.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
contentpane.add(new JScrollPane(list));
list.addListSelectionListener(new ListSelectionListener() {
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public void valueChanged(ListSelectionEvent e) {
contentpane.setBackground(listColorValues[list
.getSelectedIndex()]);
}
});
setSize(200, 200);
setVisible(true);
}
public static void main(String[] args) {
JListDemo test = new JListDemo();
test.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
}
}
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OUTPUT
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Practical No: - 18
Aim: - Write a program to show use of JMenu program in
Swing.
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PROGRAM
import java.awt.*;
import java.awt.event.*;
import javax.swing.JMenu;
import javax.swing.JMenuItem;
import javax.swing.JCheckBoxMenuItem;
import javax.swing.JRadioButtonMenuItem;
import javax.swing.ButtonGroup;
import javax.swing.JMenuBar;
import javax.swing.KeyStroke;
import javax.swing.ImageIcon;
import javax.swing.JPanel;
import javax.swing.JTextArea;
import javax.swing.JScrollPane;
import javax.swing.JFrame;
//Used Action Listner for JMenuItem & JRadioButtonMenuItem
//Used Item Listner for JCheckBoxMenuItem
public class JMenuDemo implements ActionListener, ItemListener {
JTextArea jtAreaOutput;
JScrollPane jspPane;
public JMenuBar createJMenuBar() {
JMenuBar mainMenuBar;
JMenu menu1, menu2, submenu;
JMenuItem plainTextMenuItem, textIconMenuItem, iconMenuItem,
subMenuItem;
JRadioButtonMenuItem rbMenuItem;
JCheckBoxMenuItem cbMenuItem;
ImageIcon icon = createImageIcon("jmenu.jpg");
mainMenuBar = new JMenuBar();
menu1 = new JMenu("Menu 1");
menu1.setMnemonic(KeyEvent.VK_M);
mainMenuBar.add(menu1);
// Creating the MenuItems
plainTextMenuItem = new JMenuItem("Menu item with Plain Text",
KeyEvent.VK_T);
// can be done either way for assigning shortcuts
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// menuItem.setMnemonic(KeyEvent.VK_T);
// Accelerators, offer keyboard shortcuts to bypass navigating the menu
// hierarchy.
plainTextMenuItem.setAccelerator(KeyStroke.getKeyStroke(
KeyEvent.VK_1, ActionEvent.ALT_MASK));
plainTextMenuItem.addActionListener(this);
menu1.add(plainTextMenuItem);
textIconMenuItem = new JMenuItem("Menu Item with Text & Image",
icon);
textIconMenuItem.setMnemonic(KeyEvent.VK_B);
textIconMenuItem.addActionListener(this);
menu1.add(textIconMenuItem);
// Menu Item with just an Image
iconMenuItem = new JMenuItem(icon);
iconMenuItem.setMnemonic(KeyEvent.VK_D);
iconMenuItem.addActionListener(this);
menu1.add(iconMenuItem);
menu1.addSeparator();
// Radio Button Menu items follow a seperator
ButtonGroup itemGroup = new ButtonGroup();
rbMenuItem = new JRadioButtonMenuItem(
"Menu Item with Radio Button");
rbMenuItem.setSelected(true);
rbMenuItem.setMnemonic(KeyEvent.VK_R);
itemGroup.add(rbMenuItem);
rbMenuItem.addActionListener(this);
menu1.add(rbMenuItem);
rbMenuItem = new JRadioButtonMenuItem(
"Menu Item 2 with Radio Button");
itemGroup.add(rbMenuItem);
rbMenuItem.addActionListener(this);
menu1.add(rbMenuItem);
menu1.addSeparator();
// Radio Button Menu items follow a seperator
cbMenuItem = new JCheckBoxMenuItem("Menu Item with check
box");
cbMenuItem.setMnemonic(KeyEvent.VK_C);
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cbMenuItem.addItemListener(this);
menu1.add(cbMenuItem);
cbMenuItem = new JCheckBoxMenuItem("Menu Item 2 with check
box");
cbMenuItem.addItemListener(this);
menu1.add(cbMenuItem);
menu1.addSeparator();
// Sub Menu follows a seperator
submenu = new JMenu("Sub Menu");
submenu.setMnemonic(KeyEvent.VK_S);
subMenuItem = new JMenuItem("Sub MenuItem 1");
subMenuItem.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_2,
ActionEvent.CTRL_MASK));
subMenuItem.addActionListener(this);
submenu.add(subMenuItem);
subMenuItem = new JMenuItem("Sub MenuItem 2");
submenu.add(subMenuItem);
subMenuItem.addActionListener(this);
menu1.add(submenu);
// Build second menu in the menu bar.
menu2 = new JMenu("Menu 2");
menu2.setMnemonic(KeyEvent.VK_N);
mainMenuBar.add(menu2);
return mainMenuBar;
}
public Container createContentPane() {
// Create the content-pane-to-be.
JPanel jplContentPane = new JPanel(new BorderLayout());
jplContentPane.setLayout(new BorderLayout());// Can do it either way
// to set layout
jplContentPane.setOpaque(true);
// Create a scrolled text area.
jtAreaOutput = new JTextArea(5, 30);
jtAreaOutput.setEditable(false);
jspPane = new JScrollPane(jtAreaOutput);
// Add the text area to the content pane.
jplContentPane.add(jspPane, BorderLayout.CENTER);
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return jplContentPane;
}
/** Returns an ImageIcon, or null if the path was invalid. */
protected static ImageIcon createImageIcon(String path) {
java.net.URL imgURL = JMenuDemo.class.getResource(path);
if (imgURL != null) {
return new ImageIcon(imgURL);
} else {
System.err.println("Couldn't find image file: " + path);
return null;
}
}
private static void createGUI() {
JFrame.setDefaultLookAndFeelDecorated(true);
// Create and set up the window.
JFrame frame = new JFrame("JMenu Usage Demo");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
JMenuDemo app = new JMenuDemo();
frame.setJMenuBar(app.createJMenuBar());
frame.setContentPane(app.createContentPane());
frame.setSize(500, 300);
frame.setVisible(true);
}
public void actionPerformed(ActionEvent e) {
JMenuItem source = (JMenuItem) (e.getSource());
String s = "Menu Item source: " + source.getText()
+ " (an instance of " + getClassName(source) + ")";
jtAreaOutput.append(s + "\n");
jtAreaOutput.setCaretPosition(jtAreaOutput.getDocument()
.getLength());
}
public void itemStateChanged(ItemEvent e) {
JMenuItem source = (JMenuItem) (e.getSource());
String s = "Menu Item source: "
+ source.getText()
+ " (an instance of "
+ getClassName(source)
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+ ")"
+ "\n"
+ " State of check Box: "
+ ((e.getStateChange() == ItemEvent.SELECTED) ?
"selected"
: "unselected");
jtAreaOutput.append(s + "\n");
jtAreaOutput.setCaretPosition(jtAreaOutput.getDocument()
.getLength());
}
// Returns the class name, no package info
protected String getClassName(Object o) {
String classString = o.getClass().getName();
int dotIndex = classString.lastIndexOf(".");
return classString.substring(dotIndex + 1); // Returns only Class name
}
public static void main(String[] args) {
javax.swing.SwingUtilities.invokeLater(new Runnable() {
public void run() {
createGUI();
}
});
}
}
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OUTPUT
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Practical No: - 19
Aim: - Write a program to show use of MYSQL program.
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PROGRAM
import java.sql.*;
public class MysqlConnect{
public static void main(String[] args) {
System.out.println("MySQL Connect Example.");
Connection conn = null;
String url = "jdbc:mysql://localhost:3306/";
String dbName = "jdbctutorial";
String driver = "com.mysql.jdbc.Driver";
String userName = "root";
String password = "root";
try {
Class.forName(driver).newInstance();
conn = DriverManager.getConnection(url+dbName,userName,password);
System.out.println("Connected to the database");
conn.close();
System.out.println("Disconnected from database");
} catch (Exception e) {
e.printStackTrace();
}
}
}
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OUTPUT
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Practical No: - 20
Aim: - Tutorial On Net Beans.
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Setting Up the Project
To create an IDE project:
1. Start NetBeans IDE.
2. In the IDE, choose File > New Project (Ctrl-Shift-N), as shown in the figure below.
3. In the New Project wizard, expand the Java category and select Java Application as shown
in the figure below. Then click Next.
4. In the Name and Location page of the wizard, do the following (as shown in the figure
below):
o In the Project Name field, type HelloWorldApp.
o Leave the Use Dedicated Folder for Storing Libraries checkbox unselected.
o In the Create Main Class field, type helloworldapp.HelloWorldApp.
o Leave the Set as Main Project checkbox selected.
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5. Click Finish.
The project is created and opened in the IDE. You should see the following components:
The Projects window, which contains a tree view of the components of the project,
including source files, libraries that your code depends on, and so on.
The Source Editor window with a file called HelloWorldApp open.
The Navigator window, which you can use to quickly navigate between elements within the
selected class.
The Tasks window, which lists compilation errors as well other tasks that are marked with
keywords such as XXX and TODO.
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Adding Code to the Generated Source File
Because you have left the Create Main Class checkbox selected in the New Project wizard, the IDE
has created a skeleton main class for you. You can add the "Hello World!" message to the skeleton
code by replacing the line:
// TODO code application logic here
with the line: System.out.println("Hello World!");
Save the change by choosing File > Save.
The file should look something like the following code sample.
/*
* To change this template, choose Tools | Templates
* and open the template in the editor.
*/
package helloworldapp;
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/**
*
* @author <your name>
*/
public class HelloWorldApp {
/**
* @param args the command line arguments
*/
public static void main(String[] args) {
System.out.println("Hello World!");
}
}
Compiling and Running the Program
Because of the IDE's Compile on Save feature, you do not have to manually compile your project in
order to run it in the IDE. When you save a Java source file, the IDE automatically compiles it.
The Compile on Save feature can be turned off in the Project Properties window. Right-click your
project, select Properties. In the Properties window, choose the Compiling tab. The Compile on
Save checkbox is right at the top. Note that in the Project Properties window you can configure
numerous settings for your project: project libraries, packaging, building, running, etc.
To run the program:
Choose Run > Run Main Project (F6).
If there are compilation errors, they are marked with red glyphs in the left and right margins of the
Source Editor. The glyphs in the left margin indicate errors for the corresponding lines. The glyphs
in the right margin show all of the areas of the file that have errors, including errors in lines that are
not visible. You can mouse over an error mark to get a description of the error. You can click a
glyph in the right margin to jump to the line with the error.
Building and Deploying the Application
Once you have written and test run your application, you can use the Clean and Build command to
build your application for deployment. When you use the Clean and Build command, the IDE runs
a build script that performs the following tasks:
Deletes any previously compiled files and other build outputs.
Recompiles the application and builds a JAR file containing the compiled files.
To build your application:
Choose Run > Clean and Build Main Project (Shift-F11)
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You can view the build outputs by opening the Files window and expanding the HelloWorldApp
node. The compiled bytecode file HelloWorldApp.class is within the
build/classes/helloworldapp subnode. A deployable JAR file that contains the
HelloWorldApp.class is within the dist node.
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Practical No: - 21
Aim: - Write a program to show use of NetBeans program.
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PROGRAM
package helloworldapp;
/**
*
* @author <your name>
*/
public class HelloWorldApp {
/**
* @param args the command line arguments
*/
public static void main(String[] args) {
System.out.println("Hello World!");
}
}
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OUTPUT
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Practical No: - 22
Aim: - Write a program to show use of JDBC.
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PROGRAM
import javax.swing.JOptionPane;
import java.sql.*;
public class JdbcDemo
{
public static void main(String args[])
{
JOptionPane.showMessageDialog(null,"Welcome to JDBC Demo");
int choice = -1;
String userid="scott";
String password = "tiger";
do
{
choice = getChoice();
if (choice != 0)
{
getSelected(choice, userid, password);
}
}
while ( choice != 0);
System.exit(0);
}
public static int getChoice(){
String choice;
int ch;
choice = JOptionPane.showInputDialog(null,
"1. Create Coffees Table\n"+
"2. Insert Values into Coffees Table\n"+
"3. Create Suppliers Table\n"+
"4. Insert Values into Suppliers Table\n"+
"5. Update Table Example on Coffees Table\n"+
"6. A PreparedStatement Demo On Coffees Table\n"+
"7. A PreparedStatement Demo On Coffees Table using a FOR
Statement\n"+
"8. List of the coffees he buys from Acme, Inc [Supplier]\n"+
"9. Using Transactions Demo"+
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"10. Creating a Stored Procedue Demo\n"+
"11. Using Callable Statement to call a Stored Procedure\n"+
"12. Batch Update Demo\n"+
"0. Exit\n\n"+
"Enter your choice");
ch = Integer.parseInt(choice);
return ch;
}
public static void getSelected(int choice, String userid, String password)
{
if(choice==1)
{
createCoffees(userid, password);
}
else if(choice==2)
{
insertCoffees(userid, password);
}
else if(choice==3)
{
createSuppliers(userid, password);
}
else if(choice==4)
{
insertSuppliers(userid, password);
}
else if(choice==5)
{
updateCoffees(userid, password);
}
else if(choice==6)
{
prepare1Demo(userid, password);
}
else if(choice==7)
{
prepare2Demo(userid, password);
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}
else if(choice==8)
{
joinDemo(userid, password);
}
else if(choice==9)
{
transDemo(userid, password);
}
else if(choice==10)
{
createProcedure1(userid, password);
}
else if(choice==11)
{
callableDemo(userid, password);
}
else if(choice==12)
{
batchUpdateDemo(userid, password);
}
}
// Create Coffees Table
public static void createCoffees(String userid, String password)
{
String url = "jdbc:odbc:bob"; // String url =
"jdbc:mySubprotocol:myDataSource"; ?
//
jdbc:subprotocol:subname
Connection con;
String createString;
createString = "create table COFFEES " +
"(COF_NAME varchar(32), " +
"SUP_ID int, " +
"PRICE float, " +
"SALES int, " +
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"TOTAL int)";
Statement stmt;
try {
Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
//Class.forName("myDriver.ClassName"); ?
} catch(java.lang.ClassNotFoundException e) {
System.err.print("ClassNotFoundException: ");
System.err.println(e.getMessage());
}
try { con = DriverManager.getConnection(url, "userid", "password");
stmt = con.createStatement();
stmt.executeUpdate(createString);
stmt.close();
con.close();
} catch(SQLException ex) {
System.err.println("SQLException: " + ex.getMessage());
}
}
// Insert values into Coffees Table
public static void insertCoffees(String userid, String password)
{
String url = "jdbc:odbc:bob";
Connection con;
Statement stmt;
String query = "select COF_NAME, PRICE from COFFEES";
try {
Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
} catch(java.lang.ClassNotFoundException e) {
System.err.print("ClassNotFoundException: ");
System.err.println(e.getMessage());
}
try {con = DriverManager.getConnection(url, "userid", "password");
stmt = con.createStatement();
stmt.executeUpdate("insert into COFFEES " +"values('Colombian', 00101,
7.99, 0, 0)");
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stmt.executeUpdate("insert into COFFEES " +"values('French_Roast',
00049, 8.99, 0, 0)");
stmt.executeUpdate("insert into COFFEES " + "values('Espresso', 00150,
9.99, 0, 0)");
stmt.executeUpdate("insert into COFFEES " +"values('Colombian_Decaf', 00101,
8.99, 0, 0)");
stmt.executeUpdate("insert into COFFEES " +"values('French_Roast_Decaf', 00049,
9.99, 0, 0)");
ResultSet rs = stmt.executeQuery(query);
System.out.println("Coffee Break Coffees and Prices:");
while (rs.next()) {
String s = rs.getString("COF_NAME"); // OR
rs.getString(1);
float f = rs.getFloat("PRICE"); // OR
rs.getFloat(3);
System.out.println(s + " " + f);
}
stmt.close();
con.close();
} catch(SQLException ex) {System.err.println("SQLException: " +
ex.getMessage());
}
}
// Create Suppliers Table
public static void createSuppliers(String userid, String password){
String url = "jdbc:odbc:bob";
Connection con;
String createString;
createString = "create table SUPPLIERS " +
"(SUP_ID int, " +
"SUP_NAME varchar(40), " +
"STREET varchar(40), " +
"CITY varchar(20), " +
"STATE char(2), ZIP char(5))";
Statement stmt;
try {
Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
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} catch(java.lang.ClassNotFoundException e) {
System.err.print("ClassNotFoundException: ");
System.err.println(e.getMessage());
}
try {
con = DriverManager.getConnection(url,"userid",
"password");
stmt = con.createStatement();
stmt.executeUpdate(createString);
stmt.close();
con.close();
} catch(SQLException ex) { System.err.println("SQLException: " +
ex.getMessage()); } }
// Insert values into Coffees Table
public static void insertSuppliers(String userid, String password)
{
String url = "jdbc:odbc:bob";
Connection con;
Statement stmt;
String query = "select SUP_NAME, SUP_ID from SUPPLIERS";
try {
Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
} catch(java.lang.ClassNotFoundException e) {
System.err.print("ClassNotFoundException: ");
System.err.println(e.getMessage());
}
try {
con = DriverManager.getConnection(url,"userid", "password");
stmt = con.createStatement();
stmt.executeUpdate("insert into SUPPLIERS " +
"values(49, 'Superior Coffee', '1 Party Place', " +
"'Mendocino', 'CA', '95460')");
stmt.executeUpdate("insert into SUPPLIERS " +
"values(101, 'Acme, Inc.', '99 Market Street', " +
"'Groundsville', 'CA', '95199')");
stmt.executeUpdate("insert into SUPPLIERS " +
"values(150, 'The High Ground', '100 Coffee Lane', " +
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"'Meadows', 'CA', '93966')");
ResultSet rs = stmt.executeQuery(query);
System.out.println("Suppliers and their ID Numbers:");
while (rs.next()) {
String s = rs.getString("SUP_NAME");
int n = rs.getInt("SUP_ID");
System.out.println(s + " " + n);
}
stmt.close();
con.close();
} catch(SQLException ex) {
System.err.println("SQLException: " + ex.getMessage());
}
}
// Update Coffees Table
public static void updateCoffees(String userid, String password)
{
String url = "jdbc:odbc:bob";
Connection con;
String updateString;
updateString = "UPDATE COFFEES " +
"SET SALES = 75 " +
"WHERE COF_NAME LIKE 'Colombian'";String query =
"SELECT COF_NAME, SALES FROM COFFEES " +"WHERE COF_NAME
LIKE 'Colombian'";
Statement stmt;
try {
Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
} catch(java.lang.ClassNotFoundException e) {
System.err.print("ClassNotFoundException: ");
System.err.println(e.getMessage());
}
try {
con = DriverManager.getConnection(url,"userid",
"password");
stmt = con.createStatement();
stmt.executeUpdate(updateString);
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ResultSet rs = stmt.executeQuery(query);
while (rs.next()) {
String s = rs.getString("COF_NAME"); //1
int n = rs.getInt("SALES"); //2
System.out.println(n + " pounds of " + s +
" sold this week.");
}
stmt.close();
con.close();
} catch(SQLException ex) {
System.err.println("SQLException: " + ex.getMessage());
} }
// Update Coffees Table using a prepared Statement
public static void prepare1Demo(String userid, String password)
{
String url = "jdbc:odbc:bob";
Connection con;
Statement stmt=null;
String query = "SELECT COF_NAME, SALES FROM
COFFEES ";
try {
Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
} catch(java.lang.ClassNotFoundException e) {
System.err.print("ClassNotFoundException: ");
System.err.println(e.getMessage());
}
try {
con = DriverManager.getConnection(url,"userid", "password");
PreparedStatement updateSales = con.prepareStatement(
"UPDATE COFFEES SET SALES = ? WHERE COF_NAME
LIKE ? ");
updateSales.setInt(1, 75);
updateSales.setString(2, "Colombian");
updateSales.executeUpdate();
ResultSet rs = stmt.executeQuery(query);
while (rs.next()) {
String s = rs.getString("COF_NAME"); //1
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int n = rs.getInt("SALES"); //2
System.out.println(s + " " + n);
}
stmt.close();
con.close();
} catch(SQLException ex) {
System.err.println("SQLException: " + ex.getMessage());
}
}
// Update Coffees Table using a prepared Statement
public static void prepare2Demo(String userid, String password)
{
String url = "jdbc:odbc:bob";
Connection con;
Statement stmt=null;
String query = "SELECT COF_NAME, SALES FROM COFFEES ";
try {
Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
} catch(java.lang.ClassNotFoundException e) {
System.err.print("ClassNotFoundException: ");
System.err.println(e.getMessage());
}
try { con = DriverManager.getConnection(url,"userid", "password");
PreparedStatement updateSales;
String updateString = "update COFFEES " +
"set SALES = ? where COF_NAME like ?";
updateSales = con.prepareStatement(updateString);
int [] salesForWeek = {175, 150, 60, 155, 90};
String [] coffees = {"Colombian", "French_Roast", "Espresso",
"Colombian_Decaf", "French_Roast_Decaf"};
int len = coffees.length;
for(int i = 0; i < len; i++) {
updateSales.setInt(1, salesForWeek[i]);
updateSales.setString(2, coffees[i]);
updateSales.executeUpdate();
// int n= updateSales.executeUpdate() to find out how may rows have been updated
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}
ResultSet rs = stmt.executeQuery(query);
while (rs.next()) {
String s = rs.getString("COF_NAME"); //1
int n = rs.getInt("SALES"); //2
System.out.println(s + " " + n);
}
stmt.close();
con.close();
} catch(SQLException ex) {
System.err.println("SQLException: " + ex.getMessage());}}
//Using join on 2 table to retrieve results
public static void joinDemo(String userid, String password)
{
String url = "jdbc:odbc:bob";
Connection con;
String query = "select SUPPLIERS.SUP_NAME,
COFFEES.COF_NAME " + "from COFFEES, SUPPLIERS " +
"where SUPPLIERS.SUP_NAME like 'Acme, Inc.' and " +
"SUPPLIERS.SUP_ID = COFFEES.SUP_ID";
Statement stmt;
try {
Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
} catch(java.lang.ClassNotFoundException e) {
System.err.print("ClassNotFoundException: ");
System.err.println(e.getMessage());
}
try {
con = DriverManager.getConnection (url,"userid",
"password");
stmt = con.createStatement();
ResultSet rs = stmt.executeQuery(query);
System.out.println("Supplier, Coffee:");
while (rs.next()) {
String supName = rs.getString(1);
String cofName = rs.getString(2);
System.out.println(" " + supName + ", " + cofName);
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}
stmt.close();
con.close();
} catch(SQLException ex) {
System.err.print("SQLException: ");
System.err.println(ex.getMessage());
}
}
// Using Transaction Autocommit Option
public static void transDemo(String userid, String password)
{
String url = "jdbc:odbc:bob";
Connection con=null;
Statement stmt;
PreparedStatement updateSales;
PreparedStatement updateTotal;
String updateString = "update COFFEES " +"set SALES = ?
where COF_NAME = ?";String updateStatement = "update COFFEES " +
"set TOTAL = TOTAL + ? where COF_NAME = ?";String query = "select
COF_NAME, SALES, TOTAL from COFFEES";
try {
Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
} catch(java.lang.ClassNotFoundException e) {
System.err.print("ClassNotFoundException: ");
System.err.println(e.getMessage());
}
try {
con = DriverManager.getConnection(url,"userid", "password");
updateSales = con.prepareStatement(updateString);
updateTotal = con.prepareStatement(updateStatement);
int [] salesForWeek = {175, 150, 60, 155, 90};
String [] coffees = {"Colombian", "French_Roast","Espresso",
"Colombian_Decaf","French_Roast_Decaf"};
int len = coffees.length;
con.setAutoCommit(false);
for (int i = 0; i < len; i++) {
updateSales.setInt(1, salesForWeek[i]);
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updateSales.setString(2, coffees[i]);
updateSales.executeUpdate();
updateTotal.setInt(1, salesForWeek[i]);
updateTotal.setString(2, coffees[i]);
updateTotal.executeUpdate();
con.commit();
}
con.setAutoCommit(true);
updateSales.close();
updateTotal.close();
stmt = con.createStatement();
ResultSet rs = stmt.executeQuery(query);
while (rs.next()) {
String c = rs.getString("COF_NAME");
int s = rs.getInt("SALES");
int t = rs.getInt("TOTAL");
System.out.println(c + " " + s + " " + t);
}
stmt.close();
con.close();
} catch(SQLException ex) {
System.err.println("SQLException: " + ex.getMessage());
if (con != null) {
try {
System.err.print("Transaction is being ");
System.err.println("rolled back");
con.rollback();
} catch(SQLException excep) {
System.err.print("SQLException: ");
System.err.println(excep.getMessage());
}
}
}
}
/*Creating a Stored procedure involving the coffees and the suppliers table
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create procedure SHOW_SUPPLIERS
as
select SUPPLIERS.SUP_NAME, COFFEES.COF_NAME
from SUPPLIERS, COFFEES
where SUPPLIERS.SUP_ID = COFFEES.SUP_ID
order by SUP_NAME
*/
public static void createProcedure1(String userid, String password)
{
String url = "jdbc:odbc:bob";
Connection con;
Statement stmt;
String createProcedure = "create procedure SHOW_SUPPLIERS " +
"as " + "select SUPPLIERS.SUP_NAME, COFFEES.COF_NAME " +
"from SUPPLIERS, COFFEES " + "where SUPPLIERS.SUP_ID =
COFFEES.SUP_ID " +"order by SUP_NAME";
try {
Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
} catch(java.lang.ClassNotFoundException e) {
System.err.print("ClassNotFoundException: ");
System.err.println(e.getMessage());}
try {
con = DriverManager.getConnection(url,"DPST_TRNG",
"DPST_TRNG4321");
stmt = con.createStatement();
stmt.executeUpdate(createProcedure);
stmt.close();
con.close();
} catch(SQLException ex) {
System.err.println("SQLException: " + ex.getMessage());
}
}
//Using Callable Statement to call a Stored Procedure
public static void callableDemo(String userid, String password)
{
String url = "jdbc:odbc:bob";
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Connection con;
Statement stmt=null;
try {
Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
} catch(java.lang.ClassNotFoundException e) {
System.err.print("ClassNotFoundException: ");
System.err.println(e.getMessage());
}
try {con = DriverManager.getConnection(url,"DPST_TRNG",
"DPST_TRNG4321");
CallableStatement cs = con.prepareCall("{call SHOW_SUPPLIERS}");
ResultSet rs = cs.executeQuery();
while (rs.next()) {
String c = rs.getString("SUP_NAME");
String s = rs.getString("COF_NAME");
System.out.println(c + " " + s );
}
stmt.close();
con.close();
} catch(SQLException ex) {
System.err.println("SQLException: " + ex.getMessage());
}
}
//A code showing the Batch Update Syntax
public static void batchUpdateDemo(String userid, String password)
{
ResultSet rs = null;
PreparedStatement ps = null;
String url = "jdbc:odbc:bob";
Connection con;
Statement stmt;
try {Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
} catch(java.lang.ClassNotFoundException e) {
System.err.print("ClassNotFoundException: ");
System.err.println(e.getMessage());
}
try {
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con = DriverManager.getConnection(url,"userid",
"password");
con.setAutoCommit(false);
stmt = con.createStatement();
stmt.addBatch("INSERT INTO COFFEES " +
"VALUES('Amaretto', 49, 9.99, 0, 0)");
stmt.addBatch("INSERT INTO COFFEES " +
"VALUES('Hazelnut', 49, 9.99, 0, 0)");
stmt.addBatch("INSERT INTO COFFEES " +
"VALUES('Amaretto_decaf', 49, 10.99, 0, 0)");
stmt.addBatch("INSERT INTO COFFEES " +
"VALUES('Hazelnut_decaf', 49, 10.99, 0, 0)");
int [] updateCounts = stmt.executeBatch();
con.commit();
con.setAutoCommit(true);
ResultSet uprs = stmt.executeQuery("SELECT * FROM
COFFEES");
System.out.println("Table COFFEES after insertion:");
while (uprs.next()) {
String name = uprs.getString("COF_NAME");
int id = uprs.getInt("SUP_ID");
float price = uprs.getFloat("PRICE");
int sales = uprs.getInt("SALES");
int total = uprs.getInt("TOTAL");
System.out.print(name + " " + id + " " + price);
System.out.println(" " + sales + " " + total);
}
uprs.close();
stmt.close();
con.close();
} catch(BatchUpdateException b) {
System.err.println("-----BatchUpdateException-----");
System.err.println("SQLState: " + b.getSQLState());
System.err.println("Message: " + b.getMessage());
System.err.println("Vendor: " + b.getErrorCode());
System.err.print("Update counts: ");
int [] updateCounts = b.getUpdateCounts();
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for (int i = 0; i < updateCounts.length; i++) {
System.err.print(updateCounts[i] + " ");
}
System.err.println("");
} catch(SQLException ex) {
System.err.println("-----SQLException-----");
System.err.println("SQLState: " + ex.getSQLState());
System.err.println("Message: " + ex.getMessage());
System.err.println("Vendor: " + ex.getErrorCode());
}
}
}
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OUTPUT
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Practical No: - 23
Aim: - Write a program to show use of Action in Applet
program.
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PROGRAM
import java.awt.*;
import java.applet.*;
// import an extra class for the ActionListener
import java.awt.event.*;
// Tells the applet you will be using the ActionListener methods.
public class ActionExample extends Applet implements ActionListener
{
Button okButton;
Button wrongButton;
TextField nameField;
CheckboxGroup radioGroup;
Checkbox radio1;
Checkbox radio2;
Checkbox radio3;
public void init()
{
// Now we will use the FlowLayout
setLayout(new FlowLayout());
okButton = new Button("Action!");
wrongButton = new Button("Don't click!");
nameField = new TextField("Type here Something",35);
radioGroup = new CheckboxGroup();
radio1 = new Checkbox("Red", radioGroup,false);
radio2 = new Checkbox("Blue", radioGroup,true);
radio3 = new Checkbox("Green", radioGroup,false);
add(okButton);
add(wrongButton);
add(nameField);
add(radio1);
add(radio2);
add(radio3);
// Attach actions to the components
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okButton.addActionListener(this);
wrongButton.addActionListener(this);
}
// Here we will show the results of our actions
public void paint(Graphics g)
{
// If the radio1 box is selected then radio1.getState() will
// return true and this will execute
if (radio1.getState()) g.setColor(Color.red);
// If it was not red we'll try if it is blue
else if (radio2.getState()) g.setColor(Color.blue);
// Since always one radiobutton must be selected it must be green
else g.setColor(Color.green);
// Now that the color is set you can get the text out the TextField
// like this
g.drawString(nameField.getText(),20,100);
}
// When the button is clicked this method will get automatically called
// This is where you specify all actions.
public void actionPerformed(ActionEvent evt)
{
// Here we will ask what component called this method
if (evt.getSource() == okButton)
{
// So it was the okButton, then let's perform his actions
// Let the applet perform Paint again.
// That will cause the aplet to get the text out of the textField
// again and show it.
repaint();
}
// Actions of the wrongButton
else if (evt.getSource() == wrongButton) {
// Change the text on the button for fun
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wrongButton.setLabel("Not here!");
// Changes the text in the TextField
nameField.setText("That was the wrong button!");
// Lets the applet show that message.
repaint();
}
}
}
HTML Code
<html>
<body>
<applet code="ActionExample" width=600 height=200>
</applet
</body>
</html>
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OUTPUT
107
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Practical No: - 24
Aim: - Write a program to show use of Parameters in Applet
program.
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PROGRAM
import java.awt.*;
import java.applet.*;
import java.lang.*;
public class App extends Applet
{
float cel;
double h=1.8;
double far;
public void init()
{
cel= Float.parseFloat(getParameter("C"));
far=cel*h;
}
public void paint(Graphics g){
g.drawString("Farenheit Is:"+far,100,200);
}
}
HTML Code
<html><body>
<applet code="App" width=600 height=200><param name="C"
value="200"
>
</applet>
</body>
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OUTPUT
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Practical No: - 25
Aim: - Write a program to draw spiral using Applet program.
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PROGRAM
import java.applet.*;
import java.awt.*;
import java.lang.Math;
public class ArchimedianSpiral extends Applet {
int width, height;
int N = 30; // number of points per full rotation
int W = 5; // winding number, or number of full rotations
public void init() {
width = getSize().width;
height = getSize().height;
setBackground( Color.black );
setForeground( Color.green );
}
public void paint( Graphics g ) {
int x1 = 0, y1 = 0, x2, y2;
for ( int i = 1; i <= W*N; ++i ) {
double angle = 2*Math.PI*i/(double)N;
double radius = i/(double)N * width/2 / (W+1);
x2 = (int)( radius*Math.cos(angle) );
y2 = -(int)( radius*Math.sin(angle) );
g.drawLine( width/2+x1, height/2+y1, width/2+x2, height/2+y2 );
x1 = x2;
y1 = y2; }
}
}
HTML Code
<html>
<body>
<applet code="ArchimedianSpiral" width=600 height=200>
</applet
</body>
</html>
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OUTPUT
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Practical No: - 26
Aim: - Write a program to draw lines using Applet program.
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PROGRAM
import java.applet.*;
import java.awt.*;
public class DrawingLines extends Applet {
int width, height;
public void init() {
width = getSize().width;
height = getSize().height;
setBackground( Color.black );
}
public void paint( Graphics g ) {
g.setColor( Color.green );
for ( int i = 0; i < 10; ++i ) {
g.drawLine( width, height, i * width / 10, 0 );
}
}
}
HTML Code
<html>
<body>
<applet code="DrawingLines" width=600 height=200>
</applet
</body>
</html>
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OUTPUT
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Practical No: - 27
Aim: - Write a program to draw image in Applet Program.
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PROGRAM
/*
This applet will display a gif on screen
for now the gif file must be in the same directory as this applet
*/
import java.awt.*;
import java.applet.*;
import java.net.*;
public class ImageExample extends Applet
{
// Your image name;
Image my_gif;
// The applet base URL
URL base;
// This object will allow you to control loading
MediaTracker mt;
public void init()
{ // initialize the MediaTracker
mt = new MediaTracker(this);
// The try-catch is necassary when the URL isn't valid
// Ofcourse this one is valid, since it is generated by
// Java itself.
try {
// getDocumentbase gets the applet path.
base = getDocumentBase();
}
catch (Exception e) {}
// Here we load the image.
// Only Gif and JPG are allowed. Transparant gif also.
my_gif = getImage(base,"my_gif.jpg");
// tell the MediaTracker to kep an eye on this image, and give it ID 1;
mt.addImage(my_gif,1);
// now tell the mediaTracker to stop the applet execution
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// (in this example don't paint) until the images are fully loaded.
// must be in a try catch block.
try {
mt.waitForAll();
}
catch (InterruptedException e) {}
// when the applet gets here then the images is loaded.
}
public void paint(Graphics g)
{
// now we are going to draw the gif on the screen
// (image name,x,y,observer);
g.drawImage(my_gif,20,20,this);
// you can resize the image easily
g.drawImage(my_gif,20,140,30,40,this);
}
}
HTML Code
<html>
<body>
<applet code="ImageExample" width=600 height=200>
</applet
</body>
</html>
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OUTPUT
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Practical No: - 28
Aim: - Write a program to show use of Keyboard in Applet
program.
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PROGRAM
import java.applet.*;
import java.awt.*;
import java.awt.event.*;
public class Keyboard1 extends Applet
implements KeyListener, MouseListener {
int width, height;
int x, y;
String s = "";
public void init() {
width = getSize().width;
height = getSize().height;
setBackground( Color.black );
x = width/2;
y = height/2;
addKeyListener( this );
addMouseListener( this );
}
public void keyPressed( KeyEvent e ) { }
public void keyReleased( KeyEvent e ) { }
public void keyTyped( KeyEvent e ) {
char c = e.getKeyChar();
if ( c != KeyEvent.CHAR_UNDEFINED ) {
s = s + c;
repaint();
e.consume();
}
}
public void mouseEntered( MouseEvent e ) { }
public void mouseExited( MouseEvent e ) { }
public void mousePressed( MouseEvent e ) { }
public void mouseReleased( MouseEvent e ) { }
public void mouseClicked( MouseEvent e ) {
x = e.getX();
y = e.getY();
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s = "";
repaint();
e.consume();
}
public void paint( Graphics g ) {
g.setColor( Color.gray );
g.drawLine( x, y, x, y-10 );
g.drawLine( x, y, x+10, y );
g.setColor( Color.green );
g.drawString( s, x, y );
}
}
HTML Code
<html>
<body>
<applet code="Keyboard1" width=600 height=200>
</applet
</body>
</html>
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OUTPUT
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Practical No: - 29
Aim: - Write a program to show use of Layout in Applet
program.
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PROGRAM
import java.awt.*;
import java.applet.*;
public class LayoutExample extends Applet
{
Button okButton1;
Button okButton2;
Button okButton3;
Button okButton4;
Button okButton5;
public void init()
{
// sets the LayoutManager to BorderLayout
setLayout(new BorderLayout());
okButton1 = new Button("Centered");
okButton2 = new Button("North");
okButton3 = new Button("West");
okButton4 = new Button("East");
okButton5 = new Button("South");
add(okButton1,"Center");
add(okButton2,"North");
add(okButton3,"West");
add(okButton4,"East");
add(okButton5,"South");
}
}
HTML Code
<html>
<body>
<applet code="LayoutExample" width=600 height=200>
</applet
</body> </html>
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OUTPUT
127
ROHIT BHATIA Advance Java.
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Practical No: - 30
Aim: - Write a program to show use of Mouse Pointer in
Applet program.
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PROGRAM
import java.awt.*;
import java.applet.*;
// import an extra class for the MouseListener
import java.awt.event.*;
// Tells the applet you will be using the MouseListener methods.
public class MouseClickExample extends Applet implements MouseListener
{
// The X-coordinate and Y-coordinate of the last click.
int xpos;
int ypos;
// The coordinates of the rectangle we will draw.
// It is easier to specify this here so that we can later
// use it to see if the mouse is in that area.
int rect1xco,rect1yco,rect1width,rect1height;
// The variable that will tell whether or not the mouse
// is in the applet area.
boolean mouseEntered;
// variable that will be true when the user clicked i the rectangle
// the we will draw.
boolean rect1Clicked;
public void init()
{
// Assign values to the rectanagle coordinates.
rect1xco = 20;
rect1yco = 20;
rect1width = 100;
rect1height = 50;
// Add the MouseListener to your applet
addMouseListener(this);
}
public void paint(Graphics g)
{
// Rectangle's color
g.setColor(Color.green);
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g.fillRect(rect1xco,rect1yco,rect1width,rect1height);
g.setColor(Color.red);
// When the user clicks this will show the coordinates of the click
// at the place of the click.
g.drawString("("+xpos+","+ypos+")",xpos,ypos);
// If the click was in the rectangle show this message
if (rect1Clicked) g.drawString("You clicked in the Rectangle",20,120);
// else this one
else g.drawString("You clicked outside of the rectangle",20,120);
if (mouseEntered) g.drawString("Mouse is in the applet area",20,160);
else g.drawString("Mouse is outside the Applet area",20,160);
}
/* These methods always have to present when you implement MouseListener
public void mouseClicked (MouseEvent me) {}
public void mouseEntered (MouseEvent me) {}
public void mousePressed (MouseEvent me) {}
public void mouseReleased (MouseEvent me) {}
public void mouseExited (MouseEvent me) {}
*/
// This method will be called when the mouse has been clicked.
public void mouseClicked (MouseEvent me) {
// Save the coordinates of the click lke this.
xpos = me.getX();
ypos = me.getY();
// Check if the click was inside the rectangle area.
if (xpos > rect1xco && xpos < rect1xco+rect1width && ypos >rect1yco
&& ypos < rect1yco+rect1height)
rect1Clicked = true;
// if it was not then rect1Clicked is false;
else
rect1Clicked = false;
//show the results of the click
repaint();
}
// This is called when the mous has been pressed
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public void mousePressed (MouseEvent me) {}
// When it has been released
// not that a click also calls these Mouse-Pressed and Released.
// since they are empty nothing hapens here.
public void mouseReleased (MouseEvent me) {}
// This is executed when the mouse enters the applet. it will only
// be executed again when the mouse has left and then re-entered.
public void mouseEntered (MouseEvent me) {
// Will draw the "inside applet message"
mouseEntered = true;
repaint();
}
// When the Mouse leaves the applet.
public void mouseExited (MouseEvent me) {
// will draw the "outside applet message"
mouseEntered = false;
repaint();
}
}
HTML Code
<html>
<body>
<applet code="MouseClickExample" width=600 height=200>
</applet
</body>
</html>
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ROHIT BHATIA Advance Java.
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OUTPUT
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ROHIT BHATIA Advance Java.
08-CSE-133
Practical No: - 31
Aim: - Write a program to print number using loop in Applet
program.
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ROHIT BHATIA Advance Java.
08-CSE-133
PROGRAM
import java.awt.*;
import java.applet.*;
public class PrintNum extends Applet implements Runnable
{
public void run()
{}
public void paint(Graphics g){
try {
Thread.sleep(100);
for(int i=1; i<=10; i++)
g.drawString(String.valueOf(i), 10, 5 + i* 20); }
catch (InterruptedException e)
{ }
}
}
HTML Code
<html>
<body>
<applet code="PrintNum" width=600 height=200>
</applet
</body>
</html>
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ROHIT BHATIA Advance Java.
08-CSE-133
OUTPUT
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ROHIT BHATIA Advance Java.
08-CSE-133
Practical No: - 32
Aim: - Write a program to show Hello World in Applet program.
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ROHIT BHATIA Advance Java.
08-CSE-133
PROGRAM
import java.applet.*;
import java.awt.*;
public class HelloWorld extends Applet
{
public void init()
{
}
public void stop()
{
}
public void paint(Graphics g)
{
g.drawString("Welcome to java programming",30,30);
g.drawString("Hellllo World!!!!",50,50);
}
}
HTML Code
<html>
<body>
<applet code="HelloWorld" width=600 height=200>
</applet
</body>
</html>
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OUTPUT