java源文件分享地址:

链接:https://pan.baidu.com/s/1ydG2Vv9TmXKXqaD-hLw2PA
提取码:xwtc
复制这段内容后打开百度网盘手机App,操作更方便哦

 

作业一、接口实现手机

原始的手机,可以发短信,通电话。随着发展,手机增加了功能:音频、视频播放、拍照、上网。使用接口实现手机功能;

首先创建手机父类:

package com.phone.jiekou;

public abstract class HandSet {
    private String brand;
    private String type;
    
    public HandSet() {}
    
    public HandSet(String brand,String type) {
        this.brand = brand;
        this.type = type;        
        
    }
    
    public String getBrand() {
        return brand;
    }
    public void setBrand(String brand) {
        this.brand = brand;
    }
    public String getType() {
        return type;
    }
    public void setType(String type) {
        this.type = type;
    }
    public abstract void message();
    public abstract void call();

}

创建手机功能接口:

1、上网功能接口:

package com.phone.jiekou;

public interface Network {
    public void net();

}

2、拍照功能接口:

package com.phone.jiekou;

public interface Photo {
    public void takePhoto();
}

3、播放视频功能接口:

package com.phone.jiekou;

public interface Play {
    public void play(String film);

}

4、播放音频功能接口:

package com.phone.jiekou;

public interface Music {
    public void boFang(String music);

}

创建普通手机类要求拥有播放音频功能:

package com.phone.jiekou;

public class CommonPhone extends HandSet implements Music{
    
    public CommonPhone() {
        
    }
    
    public CommonPhone(String brand,String type) {
        super(brand,type);
        
    }

    public void showInfo() {
        System.out.println("手机信息及功能介绍:");
        System.out.println("这是一部"+this.getBrand()+"的手机,型号是"+this.getType());
    }
    public void message() {
        System.out.println("发送短信!");
    }

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


    
    public void boFang(String music) {
        System.out.println("可以播放"+music+"!");
    }

}

创建智能手机类要求拥有上网功能、拍照功能、播放视频功能

package com.phone.jiekou;

public class SmartPhone extends HandSet implements Network, Photo, Play {
    
    public SmartPhone() {}
    public SmartPhone(String brand,String type) {
        super(brand,type);
    }
    

    public void showInfo() {
        System.out.println("手机信息及功能介绍:");
        System.out.println("这是一部"+this.getBrand()+"的手机,型号是"+this.getType());
    }
    
    public void play(String film) {
        System.out.println("播放电影"+film);
    }

    
    public void takePhoto() {
        System.out.println("拍照功能");
    }

    
    public void net() {
        System.out.println("上网功能");
    }

    
    public void message() {
        System.out.println("发送短信");
    }

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

}

编写测试类:

package com.phone.jiekou;

public class TestPhone {
    public static void main(String[] args) {
        CommonPhone cphone = new CommonPhone("三星","I3452");
        cphone.showInfo();
        cphone.message();
        cphone.call();
        cphone.boFang("音乐");
        
        SmartPhone sphone = new SmartPhone("苹果","6P");
        sphone.showInfo();
        sphone.message();
        sphone.call();
        sphone.play("大话西游");
        sphone.net();
        sphone.takePhoto();
        
        
    }

}

实现结果为:

手机信息及功能介绍:
这是一部三星的手机,型号是I3452
发送短信!
拨打电话!
可以播放音乐!
手机信息及功能介绍:
这是一部苹果的手机,型号是6P
发送短信
拨打电话
播放电影大话西游
上网功能
拍照功能

 

作业二、组装一台计算机

1、采用面向接口编程思想组装一台计算机

2、计算机的主要组成部分:cpu、硬盘、内存

实现思路:

定义CPU的接口cpu,返回CPU品牌和主频;

定义内存的接口EMS,返回类型和容量;

定义硬盘的接口HardDisk,返回容量;

编写各组件厂商分别实现CPU、EMS、和HardDisk接口

编写计算机类,组装计算机并显示相关信息

编写测试类运行

1、编写cpu功能接口

package com.cpu;

public interface Cpu {
    public String brand();
    public String hz();

}

1、1  生产AmdCpu

package com.cpu;

public class AmdCpu implements Cpu {

    
    public String brand() {
        return "Amd";
    }

    public String hz() {
        return "2.8G";
    }
    

}

1、2  生产IntelCpu

package com.cpu;

public class IntelCpu implements Cpu {

    
    public String brand() {
        return "Intel";
    }

    
    public String hz() {
        return "3.0G";
        
    }

}

 

2、编写内存功能接口

package com.EMS;

public interface Ems {
    public String type();
    public String room();

}

2、1  生产Jinstom品牌的内存

package com.EMS;

public class Jinstom implements Ems {

    
    public String type() {
        return "DDR3";
    }

    public String room() {
        return "4G";
    }

}

2、2  生产SunXing品牌的内存

package com.EMS;

public class SunXing implements Ems {
    
    public String type() {
        return "DDR4";
    }

    public String room() {
        return "5G";
    }

}

 

3、编写硬盘功能的接口

package com.HardDisk;

public interface HardDisk {
    public String hdd();

}

3、1  生产HaiLishi品牌的硬盘

package com.HardDisk;

public class HaiLishi implements HardDisk {

    public String hdd() {
        return "500G";
    }

}

3、2  生产XiShu品牌的硬盘

package com.HardDisk;

public class XiShu implements HardDisk {

    public String hdd() {
        return "1T";
    }

}

 

创建电脑组装类

package com.computer;

import com.EMS.Ems;
import com.HardDisk.HardDisk;
import com.cpu.Cpu;

public class Computer {
    private Cpu cpu;
    private Ems ems;
    private HardDisk hdd;
    
    

    public Cpu getCpu() {
        return cpu;
    }

    public void setCpu(Cpu cpu) {
        this.cpu = cpu;
    }

    public Ems getEms() {
        return ems;
    }

    public void setEms(Ems ems) {
        this.ems = ems;
    }

    public HardDisk getHdd() {
        return hdd;
    }

    public void setHdd(HardDisk hdd) {
        this.hdd = hdd;
    }
    
    public void showInfo() {
        System.out.println("计算机配置信息:");
        System.out.println("CPU是:"+cpu.brand()+"品牌,主频是:"+cpu.hz()+"Hz;");
        System.out.println("内存类型是:"+ems.type()+",容量为:"+ems.room()+";");
        System.out.println("硬盘容量为:"+hdd.hdd()+";");
    }


}

 

编写测试类:

package com.user;

import com.EMS.Ems;
import com.EMS.Jinstom;
import com.HardDisk.HaiLishi;
import com.HardDisk.HardDisk;
import com.computer.Computer;
import com.cpu.Cpu;
import com.cpu.IntelCpu;

public class ComputerUser {
    public static void main(String[] args) {
        Computer com= new Computer();
        Cpu cpu = new IntelCpu();    
        Ems ems = new Jinstom();
        HardDisk hdd = new HaiLishi();
        com.setCpu(cpu);
        com.setEms(ems);
        com.setHdd(hdd);
        com.showInfo();
    }
}

实现结果为:

计算机配置信息:
CPU是:Intel品牌,主频是:3.0GHz;
内存类型是:DDR3,容量为:4G;
硬盘容量为:500G;