open an external executable application program in java source code

open an external executable application program in java application program .this method is used in windows operating system software .In this java program do a simple code method that open any executable program in your java application program like notepad ,paint,ms office etc.

/*
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package javaprogram;
import java.io.*;
/**
 *
 * @author rajesh kumar shukla
 */
public class MainPro {

     //public static runExtApp runapp =new runExtApp();
     
         public static void main(String[]args){
         
        try{
             Runtime.getRuntime().exec("mspaint");
             }catch(IOException e){ //end try 5
             System.err.println(e);
         
     }//end void main
    
         }
}