How to install java 7 on debian

HOW TO INSTALL JAVA 7 ON DEBIAN 7

Debian is my distro of choice for servers, but due to licencing issues it cannot provide Oracle Java 7+ in the repos. Personally Oracle needs to undo their restrictive licensing on a VERY popular language.

Need to add an older repository that has the stuff we need:

sudo su -  
echo "deb http://ppa.launchpad.net/webupd8team/java/ubuntu precise main"
| tee -a /etc/apt/sources.list  
echo "deb-src http://ppa.launchpad.net/webupd8team/java/ubuntu precise
main" | tee -a /etc/apt/sources.list  
apt-key adv --keyserver keyserver.ubuntu.com --recv-keys EEA14886  
apt-get update  

This adds the packages that contain java7 by oracle.

Install:

sudo apt-get install oracle-java7-installer  

Then you'll see a couple of screens asking you to accept their license. It's fine, just accept both screens and it will now install.

Now you'll want to make sure java 7 is default.

sudo apt-get install oracle-java7-set-default  

Verification

\$ java -version  
java version "1.7.0\_17"  
Java(TM) SE Runtime Environment (build 1.7.0\_17-b02)  
Java HotSpot(TM) 64-Bit Server VM (build 23.7-b01, mixed mode)  

Thanks to the blog that had this information originally. Please visit them and give them a little link juice. SOURCE