Executing Java Program from Ubuntu Terminal

If you want to execute your java program from your terminal in Ubuntu first make sure you have installed any one of the Java packages:

• default-jdk
• ecj
• gcj-4.8-jdk
• openjdk-7-jdk
• gcj-4.6-jdk
• openjdk-6-jdk

To know the differences in each of the above packages, please follow this link: http://bit.ly/24FpTc9

In my case I installed the first package using the following command:

 sudo apt-get install default-jdk  

Now change your directory to the directory containing your Java Program(s). Once done hit the following command to execute your Java Program:

 javac FileName.java  

 java FileName