java钩子函数

也不知道我理解的对不对，欢迎大家讨论！

自己写了个钩子函数，我理解的钩子函数：

public interface Transactioner {


String wedontknow() ;</br></br>

}

public abstract class GouZi  {


<span style="color:#000080;font-weight:bold;">public abstract void </span><span style="background-color:#e4e4ff;">gouzi</span>(Transactioner t);</br></br>

}

public class Test extends GouZi{



    public static void main(String []s){

        Test t = new Test();

        t.gouzi(new Transactioner() {

            @Override

            public String wedontknow() {

                return "this is from Transactioner---wedontknow";

            }

        });

    }



    @Override

    public void gouzi(Transactioner t) {

        System.out.println("This is from gouzi function");

        System.out.print(t.wedontknow());

    }

}




===============

运行结果：

This is from gouzi function

this is from Transactioner---wedontknow