适配器模式--Java实现

画类图

设计一个双向适配器，让猫也能学狗叫，够也能学猫抓老鼠

具体代码实现

//Cat.java
package org.example.design006;

public interface Cat {
    public void miao();
    public void zhua();
}

//Dog.java
package org.example.design006;

public interface Dog {
    public void wang();
    public void run();
}

//RealCat.java
package org.example.design006;

public class RealCat implements Cat{
    @Override
    public void miao() {
        System.out.println("喵喵叫");
    }

    @Override
    public void zhua() {
        System.out.println("抓老鼠");
    }
}

//RealDog.java
package org.example.design006;

public class RealDog implements Dog{
    @Override
    public void wang() {
        System.out.println("汪汪叫");
    }

    @Override
    public void run() {
        System.out.println("遍地跑");
    }
}

//Adapter.java
package org.example.design006;

public class Adapter implements Cat,Dog{
    public void setCat(Cat cat) {
        this.cat = cat;
    }

    public void setDog(Dog dog) {
        this.dog = dog;
    }

    private Cat cat=new RealCat();
    private Dog dog=new RealDog();
    @Override
    public void miao() {
        System.out.println("小猫学狗叫：");
        dog.wang();
    }

    @Override
    public void zhua() {
        System.out.println("小猫学小狗：");
        dog.run();
    }

    @Override
    public void wang() {
        System.out.println("小狗学猫叫：");
        cat.miao();
    }

    @Override
    public void run() {
        System.out.println("小狗学小猫：");
        cat.zhua();
    }
}

//Main.java
package org.example.design006;

public class Main {
    public static void main(String[] args) {
        Cat cat=new Adapter();
        Dog dog=new Adapter();

        cat.zhua();
        dog.run();
        cat.miao();
        dog.wang();
    }
}