Java 帶入無限個參數的fuction

public class MethodParameter {

 /**
  * @param args
  */
 public static void main(String[] args) {
  System.out.println(getString(10,20));
  System.out.println(getString(10,20,"Hello"));
  System.out.println(getString(10,20,"Hello","World"));
  String [] sa = {"Hello","World"};
  System.out.println(getString(10,20,sa));
 }
 
        //...c帶入 string
 static String getString(int a,int b,String ...c){
  String toReturn = ""+a+","+b;
  for(String s : c)
   toReturn+=","+s;
  return toReturn;
 }

}