Command Line Argument

Sometimes need to pass information into a program when run it. This is accomplished by passing command-line arguments to  main ().

A command-line argument is the information that directly follows the program’s name on the command line when it is executed.

In java they are stored as string in the string array passed to main ().

Ex,

class Comm

{

     public static void main (string args[])

     {

            for (int i=0; i<args.length; i++)

            {       

                      System.out.println (“args: “+args[i]);

            }

     }

}

Executing this program.

Java comm. This is a 1 prg.

Output:-

args: 0: This

args: 1:is

args: 2: a

args: 3:1

args: 4: prg

Note:-

          All command line arguments are passed as string must be numeric values to their internal forms manually.

Posted by :Ruchita Pandya