Installing Java on Ubuntu Manually
Steps to follow: 1. Download jdk. I downloaded java7 from oracle's website. 2. Unzip and copy the folder into /usr/lib/jvm Make directory jvm if it doesn't exist. I renamed the folder to java-7-oracle 3. Open /etc/environment and add this line JAVA_HOME=/usr/lib/jvm/java-7-oracle PATH=$PATH:$JAVA_HOME/bin 4. Then execute this command source /etc/environment 5. On terminal type java -version to check if it shows the right version