I did these steps without error:

1. JDK path : Downloads/jdk-6u37-linux-x64.bin




2. Commands in Terminal :

   
   
   

          mkdir Programs
   
          cd Programs
   
          bash ../Downloads/jdk-6u37-linux-x64.bin
   
          ln -s jdk-6u37-linux-x64 jdk
   
   




3. Set JAVA_HOME and Path:
   in Home ->View Menu ->Show Hidden Files.
   Then open .bashrc in text editor.
   I added the following lines to end of file.

   
   
   

   export JAVA_HOME=$Home/Programs/jdk
   
   export PATH=:$JAVA_HOME/bin:$PATH
   
   

This is the result of executing the command

echo $JAVA_HOME :

/Programs/jdk

This is the result of executing the command

echo $PATH :

:/Programs/jdk/bin:/usr/lib/lightdm/lightdm:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games1

And problem is :
This is the result of executing the command java -version :

The program 'java' can be found in the following packages:

 * default-jre

 * gcj-4.6-jre-headless

 * gcj-4.7-jre-headless

 * openjdk-7-jre-headless

 * openjdk-6-jre-headless

Try: sudo apt-get install