Update Java 1.6 to 1.7 in Ubuntu

Open Terminal and run the following commands:-

• sudo apt-get install python-software-properties

• sudo apt-add-repository ppa:openjdk/ppa

• sudo apt-get update

• sudo apt-get install openjdk-7-jdk

• sudo update-alternatives –config java (Type the Version number and press Enter)

• sudo java -version

Now Check Your Java Version.