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1. Download the jdk from the Oracle site - google search jdk download
2. Extract the tar file to your home 
3. Move the extracted files which should all be within a folder jdk* to /etc - you can move to another location of your choice but be sure to remember where you put it, let's call this <javaHome> and I have used /etc/jdk1.8.0_51
4. Set the following environment variables in your .bash_profile - if you don't set these tomcat will not be able to execute JSP files

   1. PATH=./:$PATH:$HOME:/<javaHome>/bin

      CLASSPATH=/etc/<javaHome>/jre/lib/rt.jar
      JAVA_HOME=/etc/<javaHome>/
      JDK_HOME=$JAVA_HOME
      JRE_HOME=/etc/<javaHome>/jre/

5. You should be able to type java -version and javac -version
6. Navigate back to your home directory, be sure you are logged in as yourself and not root
7. Create a file called SmipleTestApplication.java
8. Add the following lines of code to it

   1. public class SimpleTestApplication
      {
            static public void main( String[] args )
            {
                   System.out.println( "Hello world\n");
            }
      }

9. Save the file and exit back to the command line
10. Type the following
    1. javac SimpleTestApplication.java
11. Now to run it type
    1. java SimpleTestApplication

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