The String array parameter of the main method

  1. The main() method in a Java program is an array of String which is initialized by the user command interface (e.g., UNIX shell)

    Example: 
        public class PrintArgs
    {
       public static void main(String[] args)
       {
	  // args is an array of String...
	  // args[i] points to i-th `argument' of the command line    
       }
    }

For example:

    UNIX>> java PrintArgs a b c

    args[0] = "a"
    args[1] = "b"
    args[2] = "c"

  2. DEMO program: