How to Compile and Run Java Program Using Command Prompt (Windows)

0.0. Download the latest version of JDK from

      http://www.oracle.com/technetwork/java/javase/downloads/index.html and install in you machine.

0.1. Set "Path" under 'System variables' in 'Environment variables'. Click here to see

      http://imtilab.blogspot.com/2016/10/how-to-install-jdk-and-what-to-do-after.html how to set path under System variables.

1. Write a java file and keep it in a directory/folder (e.g. Test.java in Desktop).

2. Compile:

            a. Goto command prompt

               -> Press Win+R to use the Run window

               -> Type cmd or cmd.exe and press Enter or click OK.

            b. Go to your file directory (you can use cd to change directory)

               -> Suppose I kept the file Test.java in my Desktop,

                        so I need to go to Desktop directory and for me command is:> cd Desktop

            c. Type javac, space and filename.java and press Enter

               -> For me, command is:> javac Test.java

            This command will compile your java file and create a class file in the same directory.

3. Run:

            a. Type java, space and filename in command prompt and press Enter

               -> For me, command is:> java Test

            Now you will see the output of your java file in the command prompt