求System.arraycopy的用法

public class Shuzufuzhi
{
 public static void main(String args[])
 {
  int myArray[]={1,2,3,4,5,6};
  int yourArray[]={10,9,8,7,6,5,4,3,2,1};
  int Array3 []=new int [myArray.length+yourArray.length];
  
  System.arraycopy(myArray, 0,Array3,0,myArray.length);
  System.arraycopy(yourArray, 0,Array3,myArray.length,yourArray.length);
  System.out.println(Array3);
 }
}

哪不对啊？？