How to Install Oracle Java 6 (JDK 6u45) In Ubuntu & LinuxMint Via PPA

This article will help you to Install Oracle JAVA 6 (JDK/JRE 6u45) on Ubuntu 14.10, 14.04 LTS and 12.04 LTS and LinuxMint systems using PPA File. To Install higher version (Java 7 or 8) on your system using following links.

Install Java JDK/JRE 7 on Ubuntu
Install Java JDK/JRE 8 on Ubuntu

Step 1: Install Java 6 (JDK/JRE 6)

Add the webupd8team java PPA repository in our system and install Oracle java8 using following set of commands.

$ sudo add-apt-repository ppa:webupd8team/java
$ sudo apt-get update
$ sudo apt-get install oracle-java6-installer

Step 2: Verify JAVA Version

After successfully installing oracle java using above step verify installed version using following command.

$ java -version

java version "1.6.0_45"
Java(TM) SE Runtime Environment (build 1.6.0_45-b17)
Java HotSpot(TM) 64-Bit Server VM (build 25.25-b02, mixed mode)

Step 3: Setup JAVA Environment

Webupd8team is providing a package to set environment variables, Install this package using following command.

$ sudo apt-get install oracle-java6-set-default

References:
https://launchpad.net/~webupd8team/+archive/java