1.1 Overview

Java is a purely object-oriented programming developed by James Gosling and his team at Sun microsystems in 1995. Java project was started in 1991. Sun microsystem released the first version of JAVA in 1995. When Java is initially developed, it is named as “OAK”, a tree outside sun microsystem. Later, it was renamed as JAVA, the name of the island in which the first coffee had been produced. As of 2018, 9th version of java has been released.

Versions of JAVA :

The following table lists the versions of java with the packages updated in each version.

JAVA 1.0 Initial release of JAVA with classes and interfaces.
JAVA 1.1 Nested Classes, RMI Invocation and database technologies.
JAVA 1.2 Integrati.3jon of swing, Collection classes
JAVA 1.4 Assertions, Regular Expression
JAVA 1.5 Enumerations, Generics
JAVA 1.6 Deque and navigable collection classes
JAVA 1.7 Resource Management
JAVA 1.8 Lambda Expression
JAVA 1.9 Jshell