tcs questions and answers

7/29/2019 tcs questions and answers

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ANSfiERS TO THE ASPIRE ASSISNMENTS:

unix assignment-1: UNIX Assignment 1

1.firite a command to list all the files inside a folder i.e. if there is afolder inside afolder then it should list all files inside the sub-folder which is inside the folder to belisted. Sol) $ find -type f

2.

Search all the files which contains a particular string, say include"within a folder.Sol) $ ls -F|grep -v /|xargs grep include$ find -type f -printO|xargs -O grep include

3.

Rename all the files within a folder with suffix Unix_" i.e.suppose a folder has twofiles a.txt and b.pdf than they both should be renamed from a single command toUnix_a.txt and Unix_b.pdf

Sol) $ for f in $(ls -F|grep -v /);do mv "$f" "Unix_$f"; done

4.

Rename all files within a folder with the first word of their content(remember all thefiles should be text files. For example if a.txt contains Unix is an OS" in its first linethen a.txt should berenamed to Unix.txt

Sol) $ for f in $(ls|grep .txt);do mv "$f" "$(cat $f|tr \n|head-1)".txt;done

5.

Suppose you have a C project in a folder called project", itcontains .c and .h files, italso contains some other .txt files and.pdf files. firite a Linux command that will


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count the number of lines of your text files. That means total line count of every file.(remember you have to count the lines in .txt files only)

Sol) $ ls|grep .txt|xargs wc l

6.

Rename all files which contain the sub-string foo, replacing itwith bar within agiven folder.

Sol) $ for f in $(ls -F|grep -v /|grep "foo");do mv "$f" "${f//foo/bar}";done l.

Show the most commonly used commands from history"? [hint:remember thehistory command, use cut, and sort it]

Sol) $ history|cut -d -f5|sort|uniQ -c|sort -r|head -5

unix assignment2:

Answer-1

Mkdir training training/level1 training/level2 training/cep level1/sdp level1/re

level1/selevel2/sdp level2/re level2/se cep/sdp cep/re cep/se

Answer-2

Cp r dir1 dir2 command will copy a directory structure dir1 todir2

.Answer-3

Ls lg command is used to find out if you have the permission to send a message.Answer-4

Ls l command is used to display all the content of directory along with size inbytes. Answer-5

Date +%T command is used to display date and time in 24-hour format

.Answer-6

Date +%t command is for printing the year, month, and date with a horizontal

tabbetween the fields.

Answer-l

Cat > chapaContents of fileCtrl+DCat > chapb

Contents of fileCtrl+DCat > chapcContents of fileCtrl+DCat > chapdContents offileCtrl+DCat > chapeContents of fileCtrl+DCat > chapAContents of fileCtrl+DCat >


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chapBContents of fileCtrl+DCat > chapCContents of fileCtrl+DCat > chapDContentsof fileCtrl+DCat > chapEContents of file Ctrl+DCat > chapO1Contents offileCtrl+DCat > chapO2Contents of fileCtrl+DCat > chapO3Contents offileCtrl+DCat > chapO4Contents of fileCtrl+DCat > chapO5Contents offileCtrl+DCat > chap11Contents of fileCtrl+DCat

> chap12Contents of fileCtrl+DCat > chap13Contents of fileCtrl+D Cat >

chap14Contents of fileCtrl+DCat > chap15Contents of fileCtrl+D Answer-8

Ls [abcde] or Ls [a-z]

Answer-9

Ls [A-Z] Answer-1O Ls O? Answer-11

Ls [bde] Answer-12

Srep c programmer personnel

Answer-13

Sed n '/programmer/p personnel

Answer-14

Sed 's/programmer/software professional/g personnel

Answer-15

The command sleep

waits a given number of seconds before continuing. Type

% sleep 1O


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This will wait 1O seconds before returning the command prompt %. Until thecommandprompt is returned, you can do nothing except wait

DBMS ASSISNMENT 1:

EMP

EMP_NO NOT NULL NUMBER(4) EMP_NAME VARCHAR(25) DESISNATION CHAR(4)JOININS_DATE DATE SALARY NUMBER(l,2) DEPT_NO NUMBER(2)

DEPT

DEPT_NO NOT NULL NUMBER(2) DEPT_NAME VARCHAR(25) BUDSET NUMBER(15,2)MANASER VARCHAR(25)

Create tables EMP, and DEPT, the structure for which are given above. firite SQLQueries for the following :

1. Display each employee??s name and date of joining.

2. Display employees earning more than Rs.5,OOO. Label the column name

??Employee??.

3. Display all employee names and employee numbers in the alphabetical order ofnames.

4. Display all employee names containing the letter ??S??.

5. Display the employees hired in 1981.

6. Display the minimum and maximum salary.

l. Display the list of employees along with their department name and its manager.

8. Display the number of different employees listed for each department.

9. Delete the records of all the employees hired in 1981 from EMP table.

1O. Update the salary of all the employees to Rs. 1O,OOO. Answers:

11. select EMPNAME, JOININSDATE from emp

12. select EMP_NAME as Employee from emp where SALARY>5OOO

13. select EMPNAME, EMPNO from emp order by EMP_NAME


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14. select EMPNAME from emp where EMPNAME like "%ra%"

15. select EMPNAME from emp where YEAR(JOININSDATE)=1981

16. select min(SALARY), max(SALARY) from emp

1l. select e.EMPNAME, d.DEPTNAME, d.MANASER from emp e, dept d wheree.DEPTNO=d.DEPTNO

18. select count(), d.DEPTNAME from emp e, dept d where e.DEPTNO= d.DEPTNO

group by e.DEPTNO

19. delete from emp where YEAR(JOININS_DATE)=1981

2O. update emp set SALARY=1OOO

1. write a program to find the difference between sum of the sQuares and thesQuare of the sums of n numbers?

Program:

import java.io.;

importjava.util.Scanner;

class Difference

{

publicstaticvoid main(String args[]) throwsIOException

{

Scanner s=newScanner(System.in); System.out.println("Enter the value of n: "); intn=s.nextInt();

int a[]=newint[n];

int i, sQr, diff, sum=O, add=O; System.out.print("The "+n); System.out.println("numbers are : "); for(i=O;i


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{

a[i]=s.nextInt(); sum+=(a[i]a[i]); add+=a[i];

} sQr=addadd; diff=sQr-sum;

System.out.println("");

System.out.print("Sum of SQuares of given "+n); System.out.println(" numbers is :"+sum); System.out.print("SQuares of Sum of given "+n); System.out.println("numbers is : "+sQr); System.out.println("");

System.out.println("Difference between sum of the sQuares and the sQuare of thesum

of given "+n);

System.out.print(" numbers is : "+diff); System.out.println("");

}

}

Enter the value of n:

4

The 4 numbers are :

2

3

4

5

Sum of SQuares of given 4 numbers is : 54

SQuares of Sum of given 4 numbers is : 196


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Difference between sum of the sQuares and the sQuare of the sum of given 4numbers is : 142

--------------

2. Develop a program that accepts the area of a sQuare and will calculate itsperimeter.

Program:


publicclassCalculateSQuarePeri

{

/


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@paramargs

/

publicstaticvoid main(String[] args)

{

Scanner s=newScanner(System.in); System.out.println("Area of SQuare : "); doublea=s.nextDouble();

double p=4Math.sQrt(a);

System.out.println(""); System.out.print("Perimeter of the SQuare : "+p);System.out.println("");

}

} Output:

Enter the area:

23


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Perimeter of the sQuare is: 19.183326O9325O8l6

-----------------------------------------------------------------------------

3. Develop the program calculateCylinderVolume., which accepts radius of acylinders base disk and its height and computes the volume of the cylinder.

Program:

import java.io.; importjava.util.Scanner; classcalculateCylinderVolume

{

publicstaticvoid main(String args[]) throwsIOException

{


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Volume of the cylinder is : 5881.O6144l52OO93

-----------------------------------------------------------------------------------------------------------

--------------------------

4. Utopias tax accountants always use programs that compute income taxes eventhough the tax rate is a solid, never-changing 15%. Define the programcalculateTax which determines the tax on the gross pay. Define calculateNetPaythat determines the net pay of an employee from the number of hours worked.Assume an hourly rate of

$12.

Program:



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publicclasscalculateTax {

/

@paramargs

/


{

Scanner s=newScanner(System.in);

System.out.println("Enter the no. of working days in the year : ");

int d=s.nextInt();

System.out.println("Enter the no. of working hours in a day : ");

int h=s.nextInt();

System.out.println("Enter the no. of hours worked in over time : ");

intot=s.nextInt();

System.out.println("Enter the no. of hours took leave : ");


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int l=s.nextInt();

double gross=((dh)+ot-l)12;

double tax= grossO.15; double net=gross-tax; System.out.println("");

System.out.println("Sross Pay (in $) : "+gross); System.out.println("Tax (in $) :"+tax); System.out.println("Net Pay (in $) : "+net);

}

}

Output:

Days worked by employer in a year :

3OO

Enter the no. of working hours in a day :

6


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Enter the no. of hours worked in over time :

1

Enter the no. of hours took leave :

156O

Sross Pay (in $) : 2892.O Tax (in $) : 433.8

Net Pay (in $) : 2458.2

-----------------------------------------------------------------------------

5. An old-style movie theater has a simple profit program. Each customer pays $5per ticket. Every performance costs the theater $2O, plus $.5O per attendee.Develop the program


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calculateTotalProfit that consumes the number of attendees (of a show) andcalculates

how much income the show earns.

Program:


publicclasscalculateTotalProfit

{

/

@paramargs

/


{

Scanner s = newScanner(System.in); System.out.println("Enter the no. of attendeesof a show : "); int n=s.nextInt();

double profit = (n5)-(2O+(nO.5)); System.out.println("");

System.out.println("Total Profit of the theater per show (in $) is : " + profit);

}


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} Output:

Enter the no. of attendees per show :

5O

Total Profit of the theater per show (in $) is : 2O5.O

l. Develop the program calculateCylinderArea, which accepts radius of thecylinders base disk and

its height and computes surface area of the cylinder.


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Program:


publicclasscalculateCylinderArea

{

/

@paramargs

/


{

Scanner s=newScanner(System.in); System.out.println("Enter the base radius : ");double rad=s.nextDouble(); System.out.println("Enter the height : ");doubleht=s.nextDouble();

double area=2Math.PIrad(rad+ht);


System.out.println("Surface Area of the cylinder is : " + area);

}

}


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Output:

Enter the base radius :

12Enter the height :

Surface Area of the cylinder is : 1884.9555921538l58

-----------------------------------------------------------------------------------------------------------

--------------------------


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System.out.println("Surface Area of the pipe is : " + area);

}

Output:

Enter the inner radius :

13

Enter the length :

2O

Enter the thickness :

5

Surface Area of the pipe is : 2261.946l1O584651

9. Develop the program calculateHeight, which computes the height that a rocketreaches in a given amount of time. If the rocket accelerates at a constant rate g, it


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reaches a speed of g t in t time units and a height of 1/2 v t where v is thespeed at t.

program:


publicclasscalculateHeight {

/

@paramargs

/

publicstaticvoid main(String[] args) { Scanner s=newScanner(System.in);System.out.println("Enter the time (in seconds) : "); double t=s.nextDouble();

double v=9.8t;


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15

Enter the rivers speed (in meter/sec) :

2OO

Enter the boats speed (in meter/sec) :

25O

The distance travelled by boat (in meters) is : 19.2O93l2l12298546

11. Develop a program that accepts an initial amount of money (called theprincipal), a simple annual interest rate, and a number of months will compute thebalance at the end of that time. Assume thatno additional deposits or withdrawalsare made and that a month is 1/12 of a year. Total interest is the product of theprincipal, the annual

interest rate expressed as a decimal, and the number of years. Program:


publicclasscalculateBalance {


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/

@paramargs

/


{

Scanner s=newScanner(System.in); System.out.println("Enter the principalamount : "); double p=s.nextDouble();

System.out.println("Enter the annual interest rate : ");

double r=s.nextDouble(); System.out.println("Enter the no. of months : "); doublem=s.nextDouble(); doublesi=(p(m/12)r)/1OO;

doublebal=p+si; System.out.println(""); System.out.print("Balance after " +(int)m);System.out.println(" month(s) is : "+bal);

}

} Output:

Enter the principal amount :

15OOO

Enter the annual interest rate :

12

Enter the no. of months :

24


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Balance after 24 month(s) is : 186OO.O

JAVA ASSISNMENT 2:1.)Create a washing machine class with methods as switchOn, acceptClothes,acceptDetergent,switchOff. acceptClothes accepts the noofClothes as argument

returns the no of Clothes.

import java.util.; class fiashingMachine{Scanner input=newScanner(System.in);public void switchOn () {System.out.println ("The lid is open.");}public void start ()

{System.out.println ("Start washing ...");} public void acceptDetergent ()


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{System.out.println("Adding Detergent.. ");start();}public intacceptClothes(){System.out.println("Enter no of clothes: ");int no=input.nextInt();return no;}publicvoid switchOff () {System.out.println ("The lid is closed.");} public static voidmain(String[] args){fiashingMachinewm=new fiashingMachine();wm.switchOn();intnumOFClothes=wm.acceptClothes();wm.acceptDetergent();wm.switchOff();System.

out. println(numOFClothes+" clothes get washed");}}

.

2)Create a calculator class which will have methods add, multiply, divide subtractclass Calculation{public int add(inta,int b){return a+b;}public int subtract(inta,int

b){if(a>b){return a-b;}else{return b-a;}}public int multiply(inta,int b){return

ab;}public int divide(inta,int b){if(a>b){return a/b;}else{return b/a;}}}public classCalculator{public static void main(String []args){Calculation cal=newCalculation();int add=cal.add(5,1O);intsub=cal.subtract(5,1O);intmul=cal.multiply(5,1O);intdiv=cal.divide(5,1O);System.out.println(add);System.out.println(sub);System.out.println (mul);System.out.println(div);}}

3. Create a class called Student which has the following methods:

i. Average: which would accept marks of 3 examinations return whether thestudent haspassed or failed depending on whether he has scored an average above5O or not.ii. Inputname: which would accept the name of the student returns thename.

import java.util.; public class Student{ Scanner input=new Scanner(System.in);public String average(){System.out.print("Enter Marks1: ");doublem1=input.nextDouble();System.out.print("Enter Marks2: ");doublem2=input.nextDouble();System.out.print("Enter Marks3: ");doublem3=input.nextDouble();double tm=m1+m2+m3;double avg=tm/3;if(avg5O){return "Passed";}return " ";}public String getName(){System.out.println("Enter Name:");String name=input.nextLine();Stringresult=average();return name+" get "+result;}public static void main(String[]args){Student data=new Student();StringnameAndResut=data.getName();System.out.println(nameAndResut);}}


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4).Create a Bank class with methods deposit withdraw. The deposit method wouldacceptattributes amount balance returns the new balance which is the sum ofamount balance. Similarly, the withdraw method would accept the attributesamount

balance returns the new balance balance amount if balance > = amount orreturn O

otherwise.

import javax.swing.;class Customer{intbal; Customer(intbal) {this.bal = bal;}intdeposit(intamt) {if (amt< O) {System.out.println("Invalid Amount");return 1;}bal =bal

+ amt;return O;} int withdraw(intamt) {if (bal


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6. Create Product having following attributes: Product ID, Name, Category ID andUnitPrice. CreateElectricalProduct having the following additional attributes:VoltageRange and fiattage. Add a

behavior to change the fiattage and price of the electrical product. Display the

updatedElectricalProduct details. import java.util.;classProduct{intproductID;Stringname;intcategoryID;doubleprice;Product(intproductID,St

rin gname,intcategoryID,double price){this.productID=productID;this.name=name;this.categoryID=categoryID;this.price=price;}}public class ElectricalProduct extendsProduct{intvoltageRange;intwattage;ElectricalProduct(intproductID,Stringname,intcateg oryID,doubleprice,intvoltageRange, intwattage){super(productID,name,categoryID,price);this.voltageRange=voltageRange;this.wattage=wattage;}

COMMUNICATIOM ASSISNMENT:

1. Identify the sounds in the following words. How many sounds can you find in eachword? Try and rewrite the words using the phonetic symbols.

S.No. fiord Phonetic symbol No. of sounds

1) added & d a d 4

2) project p r a d7 s k t l

3) man m & n 3


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4) king k + y 3

5) duck d a k 3

6) come k a m 3 l) here h + r 3

8) chocolate tf a k l a t 6

9) comfortable k a m f a r t a b a l 11

1O) environmenta n v a j r a n m a n t 12

11) technology t s k n a l + d7 i 9

12) bear b s r 3

13) computer k a m p j u t a r 9

14) English + y g l + f 615) Manager m & n a d7 a r l

---------------------------------------------------------------------------------------------------------

2. fihat do you understand by the term schwa? Explain what you have understoodwith the help of examples.

Schwa is the most common sound in the English language. It occurs only inunstressed syllables and getting it correct helps spoken English to sound morenatural and fluent. Any vowel letter can be pronounced as schwa and the


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pronunciation of a vowel letter can change depending on whether the syllable inwhich it occurs is stressed or not.

The phonetic symbol for schwa is: /e/ Example:

:- To survive the cold weather you have to make thorough preparations..

The schwa sounds are marked in underlined

---------------------------------------------------------------------------------------------------------

3. How many sounds do we have in English?

There are 26 letters in the English alphabet but there are 44 sounds in the English

language. This means that the number of sounds in a word is not always the sameas the number of letters.

The sounds are organized into the following different groups: Short vowels

Long vowels

Diphthongs (double vowel sounds) Voiceless consonants

Voiced consonants


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Other consonants

---------------------------------------------------------------------------------------------------------

4. Put and Cut are spelt in a similar fashion but pronounced differently. Couldyou explain why?

fiords rhyme when their sounds are the same from the last stressed vowel sound to

the end of the word.In single-syllable words its easy to find rhymes. Cat, sat, hat, and fat all rhyme.

There are some non-rhyming words, specifically about words you would expect torhyme, but do not.

Example: Cut and Put

These two words have some similar spelling but they are pronounced in a differentway.

Cut is pronounced as /kxt/ Put is pronounced as /put/

---------------------------------------------------------------------------------------------------------


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fihen the sounds /t/ or /d/ occur between two consonant sounds, they will oftendisappear completely from the pronunciation.

Im going nex(t) week

That was the wors(t) job I ever had! Jus(t) one person came to the party! I can(t)swim

---------------------------------------------------------------------------------------------------------

6. fihy does fiho is sound as who(w)iz is connected speech?

fihen one word ends with a vowel sound and the next word begins with a vowel,another sound, a /w/ or /j/ can be added depending on the particular sounds tomake a smooth transition. This is a type of linking (Vowel to Vowel Linking).

Here, in this example, 'who ends with vowel sound and 'is begins with a vowelsound. So, the sound /w/ is added to make a smooth transition.

--------------------------------------------------------------------------------------------------------- l. fihydoes Visit us sound as Visi tas?


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fihen one word ends with a consonant sound and the next word begins with a vowelsound there is a smooth link between the two. This type is known as consonant tovowel linking.

Here,

'visit ends with consonant sound and 'us begins with a vowel sound. So, there is asmooth link between these two words

---------------------------------------------------------------------------------------------------------

8. Based on the lessons you have accessed, write a brief note on what you haveunderstood about pronunciation in English.

There are 26 letters in the English alphabet but there are many more sounds in theEnglish language. This means that the number of sounds in a word is not always thesame as the number of letters.

The word CAT has three letters and three sounds but the word CATCH has fiveletters but still only three sounds.

If we write these words using sound symbols, we can see exactly how many soundsthey have.

CAT is written /k & t/ CATCH is written /k & /


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For Example,

1. Van and Fan

2. Pull and Bull

3. Tin and Din

The following sounds are usually voiceless:

p t k f

The following sounds are usually voiced b d g v

BASICS OF PROSRAMMINS ASSISNMENT:

1. firite a program to accept an array of names and a name and check whether thename

2. is present in the array. Return the count of occurrence. Use the following array asinput

3. {Dave", Ann", Seorge", Sam", Ted", Sag", Saj", Agati", Mary", Sam",


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4. Ayan", Dev", Kity", Meery", Smith", Johnson", Bill", fiilliams", Jones",

5. Brown", Davis", Miller", fiilson", Moore", Taylor, Anderson", Thomas",

6. Jackson"}/

l.

8.

9. import java.io.;

1O. import java.util.StringTokenizer;

11.

12. public class CountOccurance

13. {14. public static void main(String args[])throws Exception

15. {

16. InputStreamReader isr=new InputStreamReader(System.in);

1l. BufferedReader br=new BufferedReader(isr);

18.

19. System.out.println("ENTER ARRAY OF NAMES:");

2O. String arrNames=br.readLine();

21.

22. StringTokenizer st1=new StringTokenizer(arrNames);

23.

24. System.out.println("ENTER THE NAME TO BE SEARCHED:");

25. String name=br.readLine();

26.

2l. int countNoOccurance=O;

28.

29. while(st1.hasMoreTokens())


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O9 int num1, num2;

1O

11 //get two numbers

12 cout > num1 >> num2;

14 while ((num1 < O) || (num2 < O))

15 {

16 cout > num1 >> num2;

18 }19

2O //Display SCD of two numbers.

21 cout


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35 }

363l

38 // Iterative call to function

39 int SCD(int a, int B)

4O {

41 while (1)

42 {

43 a = a % b;

44 if ( a == O)

45 {

46 return b;

4l }

48 b = b % a;

49 if (b == O)

5O {

51 return a;

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