Java面向对象练习(3) (2024.7.11)

手机类

java 复制代码
package Phone20240711;

public abstract class Phone {
    private String brand;
    private String price;

    public Phone(){}

    public Phone(String brand, String price) {
        this.brand = brand;
        this.price = price;
    }

    public String getBrand() {
        return brand;
    }

    public void setBrand(String brand) {
        this.brand = brand;
    }

    public String getPrice() {
        return price;
    }

    public void setPrice(String price) {
        this.price = price;
    }

    public abstract void call();
    public abstract void sendMessages();
}

旧手机类

java 复制代码
package Phone20240711;

public class OldPhone extends Phone{
    public OldPhone() {}

    public OldPhone(String brand, String price) {
        super(brand, price);
    }

    @Override
    public void call() {
        System.out.println("旧手机" + this.getBrand() + "在打电话");
    }

    @Override
    public void sendMessages() {
        System.out.println("新手机" + this.getBrand() + "在打电话");
    }
}

新手机类

java 复制代码
package Phone20240711;

public class NewPhone extends Phone implements PlayGame{
    public NewPhone() {}

    public NewPhone(String brand, String price) {
        super(brand, price);
    }

    @Override
    public void call() {
        System.out.println("新手机" + this.getBrand() + "在打电话");
    }

    @Override
    public void sendMessages() {
        System.out.println("新手机" + this.getBrand() + "在发短信");
    }

    @Override
    public void playGame() {
        System.out.println("新手机" + this.getBrand() + "在玩游戏");
    }
}

游戏接口

java 复制代码
package Phone20240711;

public interface PlayGame {
    public abstract void playGame();
}

测试

java 复制代码
package Phone20240711;
import java.util.Scanner;
public class PhoneTest {
    public static void main(String[] args) {
        NewPhone np = creatNewPhone();
        OldPhone op = creatOldPhone();
        np.call();
        np.sendMessages();
        np.playGame();
        op.call();
        op.sendMessages();
    }

    public static NewPhone creatNewPhone() {
        Scanner sc = new Scanner(System.in);
        System.out.println("请输入新手机的品牌");
        String brand = sc.next();
        System.out.println("请输入新手机的价格");
        String price = sc.next();
        return new NewPhone(brand, price);
    }
    public static OldPhone creatOldPhone() {
        Scanner sc = new Scanner(System.in);
        System.out.println("请输入旧手机的品牌");
        String brand = sc.next();
        System.out.println("请输入旧手机的价格");
        String price = sc.next();
        return new OldPhone(brand, price);
    }
}
相关推荐
wjs0405 分钟前
Git常用的命令
java·git·gitlab
superlls25 分钟前
(算法 哈希表)【LeetCode 349】两个数组的交集 思路笔记自留
java·数据结构·算法
田里的水稻1 小时前
C++_队列编码实例,从末端添加对象,同时把头部的对象剔除掉,中的队列长度为设置长度NUM_OBJ
java·c++·算法
ponnylv1 小时前
深入剖析Spring Boot启动流程
java·开发语言·spring boot·spring
前行的小黑炭1 小时前
Android 协程的使用:结合一个环境噪音检查功能的例子来玩玩
android·java·kotlin
李少兄2 小时前
解决IntelliJ IDEA 提交代码时无复选框问题
java·ide·intellij-idea
cyforkk2 小时前
Spring Boot @RestController 注解详解
java·spring boot·后端
叫我阿柒啊3 小时前
从Java全栈到前端框架:一次真实面试的深度复盘
java·spring boot·typescript·vue·database·testing·microservices
点云SLAM3 小时前
C++ 常见面试题汇总
java·开发语言·c++·算法·面试·内存管理
sniper_fandc3 小时前
IDEA修改系统缓存路径,防止C盘爆满
java·ide·intellij-idea