双向适配器实例

1. 项目结构

2. 代码 

package com;

public class Adapter implements Icat, Idog {
	Icat cat=null;
	Idog dog=null;
	
	public Adapter(Icat cat) {
		this.cat=cat;
	}
	public Adapter(Idog dog) {
		this.dog=dog;
	}

	@Override
	public void dogLooks() {
		System.out.println("我是一只狗");

	}

	@Override
	public void goujiao() {
		cat.zhuoshu();

	}

	@Override
	public void catLooks() {
		System.out.println("我是一只猫");

	}

	@Override
	public void zhuoshu() {
		dog.goujiao();
	}

}

package com;

public interface Icat {
	public void catLooks();
	public void zhuoshu();
}

package com;

public class IcatImpl implements Icat {

	@Override
	public void catLooks() {
		System.out.println("我有猫的外表");

	}

	@Override
	public void zhuoshu() {
		System.out.println("我能抓老鼠");

	}

}

package com;

public interface Idog {
	public void dogLooks();
	public void goujiao();
}

package com;

public class IdogImpl implements Idog {

	@Override
	public void dogLooks() {
		System.out.println("我有狗的外表");

	}

	@Override
	public void goujiao() {
		System.out.println("我会狗叫");

	}

}

package com;

public class Main {

	public static void main(String[] args) {
		//把狗设配成猫
		Icat fakercat=new Adapter(new IdogImpl());
		fakercat.catLooks();
		fakercat.zhuoshu();
		//把猫设配成狗
		Idog fakerdog=new Adapter(new IcatImpl());
		fakerdog.dogLooks();
		fakerdog.goujiao();
	}

}