public class Append {
   public static void main(String args[]) {
     // Create a StringBuffer object and 
     // assign it to the variable buf.
     
     StringBuffer buf = new StringBuffer();
     
     // Initializes the for loop.
     // Checks for the number of arguments on 
     // the command line, then loops through them
     
     for (int i=0; i< args.length; i++) {
     
     // For each argument besides the first, 
     // append comma to end of buffer
     
       if (i != 0) {
         buf.append(", ");
       }
       
       // Add all arguments to the
       // StringBuffer object buf.
       
       buf.append(args[i]);
     }
     // Converts the StringBuffer arguments
     // to simple strings and prints to screen.
     
     System.out.println(buf.toString());
   }
}