interface CallBack{
    void callMethod();
    }
interface CallBack1{
    void callMethod1();
    }
interface CallBack2{
    void callMethod2();
    }
class Client implements CallBack,CallBack1,CallBack2{
    public void callMethod(){
        System.out.println("hello");
        }
    public void callMethod1(){
        System.out.println("hello1");
        }
    public void callMethod2(){
        System.out.println("hello2");
        }
    }
public class huxiang{
    public static void callMethod(CallBack someone){//这个叫不叫方法的重写啊，怎么感觉是多余的呢
        someone.callMethod();                       //把这三个静态方法去掉看上去没什么问题啊，怎么却不
        }                                            //能运行啊？请教了
    public static void callMethod1(CallBack1 someone){
        someone.callMethod1();
        }
    public static void callMethod2(CallBack2 someone){
        someone.callMethod2();
        }
    public static void main(String args[]){
        Client a=new Client();
        callMethod(a);
        callMethod1(a);
        callMethod2(a);
        }
    }

那能不能帮我把去掉这三个方法的写法告诉我啊，这三个方法放在这怪别扭的，难懂