// CommandLineDemo2.java
// Demonstrates command-line arguments
// Expects the user to type:
//
//    java CommandLineDemo2 firstname middlename lastname
//
// using one's actual first, middle, and last names.
// Displays user-friendly message if user does not
// type at least three command-line arguments.

public class CommandLineDemo2  {
   public static void main(String[] args)
   {
      if ( args.length < 3 )  {
         System.out.print("This program will echo your ");
         System.out.println("name if you type it as");
         System.out.println("three command-line arguments.");
      } // if

      String name;

      name = args[0] + " " + args[1] + " " + args[2];
      System.out.println("Hello, " + name + ".");
   }  // method main
}  // class CommandLineDemo2