Working with Command Prompt

In this post we will be making a "Hello World"  Program by using the command prompt.

(I) Go to Run or press (Windows+R) key .
(II) Type in cmd.

    Command Prompt

(III) Type -> cd desktop           (so as to move to the desktop subdirectory)
                 ->mkdir Programs    (creates a folder Programs on desktop)
                 ->cd Programs      
                 ->notepad first.java  (creates a file first with.java extension in Programs folder)

(IV) Now copy the following code inside first.java

(V) Go to the cmd and type -> javac first.java

       This will compile the first.java and form a sample.class file inside your Programs folder.



(VI) We have the bytecode of the sample class made in first.java now, we will run it .
     
            -> java sample

      NOTE: do not include .java while running

We have successfully compiled and run our first program using the command prompt.