History

Introduction

Welcome to the tutorial Object Oriented Programming in JAVA. This tutorial will cover a core set of computer science concepts needed to create a modern software application using Java.

History of JAVA :

Invented by	:	James Gosling, Arthur Vanhaft, and Anderson
Invention Date	:	June 1991
Vendor	:	Sun Micro System
Project name	:	Green Project
Type	:	Open source & free software
Initial Names	:	Greentalk, OAK
Present Name	:	Java
Extensions	:	.java & .class & .jar
Initial version	:	Jdk 1.0 (java development kit)
Present version	:	Java 8, 2014
Operating System	:	Multi Operating System
Implementation Languages	:	C, Cpp......
Symbol	:	Coffee cup with saucer
Objective	:	To develop web applications
SUN	:	Stanford Universally Network
Slogan/Motto	:	WORA (write once run anywhere)

Why JAVA is important?

• Two Reasons:
  • Trouble with C/C++ language is that they are not portable and are not platform independent languages.
  • Emergence of World Wide Web, which demanded portable programs
• Portability and Security necessitated the invention of Java

JAVA Versions:-

1. JDK Alpha and Beta in 1995
2. JDK 1.0 on 23rd Jan, 1996
3. JDK 1.1 on 9th Feb, 1997
4. J2SE 1.2 on 8th Dec, 1998
5. J2SE 1.3 on 8th May, 2000
6. J2SE 1.4 on 6th Feb, 2002
7. J2SE 5.0 on 30th Sep, 2004
8. Java SE 6 on 11th Dec, 2006
9. Java SE 7 on 28th July, 2011
10. Java SE 8 on 18th March, 2014

JAVA Editions:

• J2SE (Java 2 Standard Edition) – to develop client side standalone applications or applets.
• J2ME (Java 2 Mobile Edition) – to develop applications for mobile devices such as cell phones.
• J2EE (Java 2 Enterprise Edition) – to develop server-side applications such as Java Servlets and Java Server Pages.

What is Java?

• A general-purpose object-oriented language.
• Write Once Run Anywhere (WORA).
• Designed for easy Web / Internet applications.
• Widespread acceptance.