Java

Java was originally developed BY James Gosling AT Sun Microsystems (which has since been acquired BY Oracle Corporation) AND released IN 1995 AS a core component of Sun Microsystems' Java platform. The language derives much of its syntax from C and C++, but it has fewer low-level facilities than either of them.

Overview of Java

Java is open source language that's why Java is one of the world's most used computer languages. 

For the client server application java most popular programming languages in use. Particularly for client-server web applications, with a reported 9 million plus developers using and working on it.

Creation of Java

Java was developed by James Ghosling, Patrick Naughton, Mike Sheridan at Sun Microsystems Inc. in 1991. It took 18 months to develop the first working version. 

The primary name was Oak but it was renamed to Java in 1995 because OAK was a registered trademark  name of another Tech company.

Download JDK

For running Java programs in your system you will have to download and install JDK kit from here (current version is jdk 1.8).