JWD_Unit 1_Introduction to Java and Web Designing_PPT

7/27/2019 JWD_Unit 1_Introduction to Java and Web Designing_PPT

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C o n f i d e n t i a l

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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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Unit-1 Introduction to Java and Web Design


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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.

Unit-1 Introduction to Java and Web Designing


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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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JWD_Unit 1_Introduction to Java and Web Designing_PPT