Introduction to Java


In this tutorial, we will learn Introduction to Java. Java is an object-oriented programming language. Java language was developed by James Gosling at Sun Microsystems Inc. In starting they were thinking to name this language Oak, But this name was already registered by another company so they named it Java. Java is a breed of coffee. So that is why coffee mug is the logo of Java. Sun Microsystems was developed in the year 1982 by four persons. From these four persons, One person was Vinod Khosla. He was an Indian and passed out from IIT Delhi. Java was originated at Sun Microsystem in 1991.

Sun Microsystems Company developed software for Appliances. But there was a problem they had to developed software for every platform even they were working same so that is by they invent Java language to overcome this problem. On January 27, 2010, Sun Microsystems was acquired by Oracle Corporation for the US $ 7.4 billion

Java is Everywhere:

It is a slogan by the java and it is true because java resides in mobiles. Client machines, server machines, embedded devices, smartphones, cloud etc.

Java Flavours:

  • Java SE (Standard Edition) (Core Java)
  • Java EE (Enterprise Edition) (Advance Java)
  • Java ME(Micro Edition) (For Mobiles)

Java Versions:

Version Release
date
JDK Beta 1995
JDK 1.0 January 1996
JDK 1.1 February 1997
J2SE 1.2 December 1998
J2SE 1.3 May 2000
J2SE 1.4 February 2002
J2SE 5.0 September 2004
Java SE 6 December 2006
Java SE 7 July 2011
Java SE 8 (LTS) March 2014
Java SE 9 September 2017
Java SE 10 March 2018
Java SE 11 (LTS) September 2018
Java SE 12 March 2019
Java SE 13 September 2019
Java SE 14 March 2020
Java SE 15 September 2020
Java SE 16 March 2021
Java SE 17 (LTS) September 2021


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