2019.2.18接口

父类手机类：

package com.phone;

public abstract class Phone {
    public String brand;
    public String type;
    
    public Phone(String brand, String type) {
        super();
        this.brand = brand;
        this.type = type;
    }
    
    public abstract void send();
    public abstract void call();
    
}

拍照接口：

package com.phone;

public interface Photo {
    public void photo();
}

音频接口：

package com.phone;

public interface Music {
    public void music();
}

播放接口：

package com.phone;

public interface Play {
    public void play();
}

上网接口：

package com.phone;

public interface Inter {
    public void inter();
    
}

普通手机：

package com.phone;

public class CommonPhone extends Phone implements Music{


    public CommonPhone(String brand, String type) {
        super(brand, type);
        // TODO Auto-generated constructor stub
    }

    public void send() {
        System.out.println("发短信");
        
    }

    public void call() {
        System.out.println("打电话");
    }

    @Override
    public void music() {
        // TODO Auto-generated method stub
        System.out.println("播放音频");
        
    }

}

智能手机：

package com.phone;

public class ZhiNengPhone extends Phone implements Music,Photo,Play,Inter{

    public ZhiNengPhone(String brand, String type) {
        super(brand, type);
        // TODO Auto-generated constructor stub
    }

    @Override
    public void send() {
        // TODO Auto-generated method stub
        System.out.println("发短信");
    }

    @Override
    public void call() {
        // TODO Auto-generated method stub
        System.out.println("打电话");
    }

    @Override
    public void inter() {
        // TODO Auto-generated method stub
        System.out.println("上网");
    }

    @Override
    public void play() {
        // TODO Auto-generated method stub
        System.out.println("播放");
    }

    @Override
    public void photo() {
        // TODO Auto-generated method stub
        System.out.println("拍照");
    }

    @Override
    public void music() {
        // TODO Auto-generated method stub
        System.out.println("播放音频");
    }

}

测试类：

package com.phone;

public class Test {
    public static void main(String[] args) {
        CommonPhone phone = new CommonPhone("诺基亚", "A3");
        System.out.println("这是一部"+phone.brand+"，型号为"+phone.type);
        phone.send();
        phone.call();
        phone.music();
        System.out.println("****************");
        ZhiNengPhone zn = new ZhiNengPhone("苹果", "6s");
        System.out.println("这是一部"+zn.brand+"，型号为"+zn.type);
        zn.call();
        zn.send();
        zn.inter();
        zn.music();
        zn.photo();
        zn.play();
    }
}

输出：