jwd_unit 1_introduction to java and web designing_ppt
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Program : MBA
Semester : IV
Subject Code : MI0041
Subject Name : Java and Web Design
Unit number : 1
Unit Title : Introduction to Java and Web Design
Lecture Number : 1
Lecture Title : Introduction to Java and Web Design
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Introduction to Web
Objectives :
To explain the difference between the Web and the Internet.
To describe the purpose of a browser.
To analyse the structure of a Web page in a browser.
To explain the importance of Java in Web designing.
To learn the uses and performance of search engine.
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Lecture Outline
Introduction
World Wide Web
Internet Versus Web
Web Browsers
Browser Components
Features of Browser
Web Page
Structure of Web Page
Introduction to Java
Java Servlets and Java Server Page Summary
Check Your Learning
Activity
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Introduction
Internet is used in day to day activities.
The most common word that we use with Internet is WWW.
WWW is generally known as "Web".
We access Web using the Web browser.
In this session, we will learn the working of Web and its basic features.
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World Wide Web
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Web/WWW:
Wide area information retrieval initiative aiming to give universal access
to a large universe of information.
It is a HTML file comprising graphics and additional features.
It has two specifications:
- Hyper Text mark-up Language
- Hyper Text Transfer Protocol (HTTP)
Hypertext helps to link other Web pages and text.
Unique address given to a Web page is URL.
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Internet Versus Web
Web consists:Web pages linked through URLs and hyperlinks. Web pages are transported in the form of information packets. It is dependent on the Internet. It is governed by the Hyper Text Transfer Protocol (HTTP).
Internet consists:
Huge hardware network assessed by everybody across the world. Data is transmitted in the form of information packets. It is independent of Web. It is governed by the Internet Protocol (IP).
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Web Browsers
A software program that allows to view and interact with anyinformation on the Web.
Used to make a request to a Web server for Web page or Website
using the URL of the respective Web page or Website.
Functions: Request for a page from computer. Interpret the HTML page sent back by the Web server.
Some examples: Internet Explores (IE), Firefox, Flock, Web 2.0, Safari, and Opera.
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Browser Components
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D a
t a S t o r a g e
User Interface
Browser Engine
Rendering Engine
DisplayBackend Networking
JavaScriptInterpreter
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Features of Browser
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Web Page
Web page comprises data, images, animations, audio files, and video
files.
HTML or XHTML formats are generally used to present a Web page.
It helps in Web browsers in easy structuring and quick reading of
data from Web server.
CSS can be used to modify the look and feel of elements on a Web
page.
Hyperlinks helps to navigate to other Web pages.
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Structure of Web Page
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Introduction to Java
Java: It is a high level programming language.
Examples of its use: Mobile software
Software games
- James Gosling developed and released Java in 1995 at Sun
Microsystems.
- Java Servlets and Java Server Pages are used to develop Web pages and
applications.
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Java Servlets and Java Server Page
Java Servlet: It is a Java program running on a Web server and processing Web pages
using HTTP. It processes the data before transferring it to the browser from a Web
server.
Java Server Pages (JSP): It is used to create Web pages using HTML and Java code and is based
on Java servlets. Tags can be created to perform specific operation.
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Summary
Web is a HTML file comprising graphics and additional features.
Web browser is a software program that allows to view and interact
with any information on the Web.
Java is a high level programming language.
Servlet is a high level programming language.
JSP is used to create Web pages using HTML and Java code and is
based on Java servlets.
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Check Your Learning
1. Define Web/WWW.
Ans. It is a wide area information retrieval initiative aiming
to give universal access to a large universe of information.
2. Name any two web browsers.
Ans. Internet explorer and Opera.
3. What is Java?
Ans. Java is a high level programming language.
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Activity
Many people find surfing the Web fun and entertaining.
Why do you think people are attracted so much to Web?
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