接口代理模式

接口代理模式（基础认知）原理
（一）
接口

package test;public interface Fruit {   public void fruit();}

实现接口的两个实现类

package test;public class Apple implements Fruit {    @Override    public void fruit() {        // TODO Auto-generated method stub        System.out.println("苹果");    }}

package test;public class Banana implements Fruit {    @Override    public void fruit() {        // TODO Auto-generated method stub        System.out.println("香蕉");    }}

测试类

package test;public class Main {    Fruit fruit = null;   public Main(Fruit fruit) {        this.fruit = fruit;    }   public void fruit() {       fruit.fruit();    }public static void main(String[] args) {    Fruit fruit = new Banana();    Main m = new Main(fruit);    m.fruit();   }}

（二）
接口

package test;public interface View {   public void  clikButton();}

实现接口的一个实现类

package test;public class Action implements View{    Button button = null;    public void onStart(){        button = new Button();        button.clickButton(this);    }    public static void main(String[] args) {        Action a = new Action();        a.onStart();    }//    class viewTest implements View{//      @Override//      public void clikButton() {//        System.out.println("Action"); //    } //  }    @Override    public void clikButton() {        // TODO Auto-generated method stub        System.out.println("Action");       }}

package test;public class Button {   public void clickButton(View view){       System.out.println("Button");       view.clikButton();   }}