Java-黑马Java学习作业-day08面向对象

学习视频链接：https://www.bilibili.com/video/BV17F411T7Ao

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题目1-定义手机类

定义手机类，手机有品牌(brand),价格(price)和颜色(color)三个属性，有打电话call()和sendMessage()两个功能。

请定义出手机类，类中要有空参、有参构造方法，set/get方法。

定义测试类，在主方法中使用空参构造创建对象，使用set方法赋值。

调用对象的两个功能，打印效果如下：

正在使用价格为3998元黑色的小米手机打电话....
正在使用价格为3998元黑色的小米手机发短信....

• Phone类

package cn.kox.homework.one;

/**
 * @ClassName: Phone
 * @Author: Kox
 * @Data: 2023/1/19
 * @Sketch: 题目1
 */
public class Phone {
    private String  brand;
    private double price;
    private String color;

    // 空参构造
    public Phone() {
    }

    // 带参构造
    public Phone(String brand, double price, String color) {
        this.brand = brand;
        this.price = price;
        this.color = color;
    }

    public String getBrand() {
        return brand;
    }

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

    public double getPrice() {
        return price;
    }

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

    public String getColor() {
        return color;
    }

    public void setColor(String color) {
        this.color = color;
    }

    private void use() {
        System.out.print("正在使用价格为" + price + "元" + color + "的" + brand + "手机");
    }

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

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

• 测试类

package cn.kox.homework.one;

/**
 * @ClassName: phoneDemo
 * @Author: Kox
 * @Data: 2023/1/19
 * @Sketch:
 */
public class phoneDemo {
    public static void main(String[] args) {
        Phone p1 = new Phone();
        p1.setBrand("小米");
        p1.setPrice(4999);
        p1.setColor("白色");
        p1.call();

        Phone p2 = new Phone("苹果", 5399, "蓝色");
        p2.set();
    }
}

题目2-定义女朋友类

定义一个女朋友类。女朋友的属性包含：姓名，身高，体重。行为包含：洗衣服wash()，做饭cook()。另外定义一个用于展示三个属性值的show()方法。请在测试类中通过有参构造方法创建对象并赋值，然后分别调用展示方法、洗衣服方法和做饭方法。打印效果如下：

我女朋友叫凤姐,身高155.0厘米,体重130.0斤
女朋友帮我洗衣服
女朋友给我做饭

• Girlfriend类

package cn.kox.homework.two;

/**
 * @ClassName: Girlfriend
 * @Author: Kox
 * @Data: 2023/1/19
 * @Sketch: 题目2
 */
public class Girlfriend {
    private String name;
    private double height;
    private double weight;

    public Girlfriend() {}

    public Girlfriend(String name, double height, double weight) {
        this.name = name;
        this.height = height;
        this.weight = weight;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public double getHeight() {
        return height;
    }

    public void setHeight(double height) {
        this.height = height;
    }

    public double getWeight() {
        return weight;
    }

    public void setWeight(double weight) {
        this.weight = weight;
    }

    public void show() {
        System.out.println("我女朋友叫" + name +"，身高" + height + "厘米，体重" + weight + "斤");
    }

    public void wash() {
        System.out.println("女朋友喊我洗衣服");
    }

    public void cook() {
        System.out.println("女朋友喊我做饭");
    }
}

• 测试类

package cn.kox.homework.two;

/**
 * @ClassName: girlfriendDemo
 * @Author: Kox
 * @Data: 2023/1/19
 * @Sketch:
 */
public class girlfriendDemo {
    public static void main(String[] args) {
        Girlfriend g1 = new Girlfriend("苏菲", 170, 105);
        g1.show();
        g1.cook();
        g1.wash();
    }
}

题目3-定义经理类

定义项目经理类Manager。属性：姓名name，工号id，工资salary，奖金bonus。行为：工作work()
定义程序员类Coder。属性：姓名name，工号id，工资salary。行为：工作work()

要求：

​ 1.按照以上要求定义Manager类和Coder类,属性要私有,生成空参、有参构造，set和get方法
​ 2.定义测试类,在main方法中创建该类的对象并给属性赋值(set方法或有参构造方法)
​ 3.调用成员方法,打印格式如下:

工号为123基本工资为15000奖金为6000的项目经理张三正在努力的做着管理工作,分配任务,检查员工提交上来的代码.....
工号为135基本工资为10000的程序员李四正在努力的写着代码......

• Manger类

package cn.kox.homework.three;

/**
 * @ClassName: Manager
 * @Author: Kox
 * @Data: 2023/1/19
 * @Sketch: 题目3
 */
public class Manager {
    private String name;
    private int id;
    private int salary;
    private int bonus;

    public Manager() {}

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public int getId() {
        return id;
    }

    public void setId(int id) {
        this.id = id;
    }

    public int getSalary() {
        return salary;
    }

    public void setSalary(int salary) {
        this.salary = salary;
    }

    public int getBonus() {
        return bonus;
    }

    public void setBonus(int bonus) {
        this.bonus = bonus;
    }

    public Manager(String name, int id, int salary, int bonus) {
        this.name = name;
        this.id = id;
        this.salary = salary;
        this.bonus = bonus;
    }

    public void work() {
        System.out.println("工号为" + id +
                "基本工资为" + salary +
                "奖金为" + bonus +
                "项目经理" + name +
                "正在努力的做着管理工作,分配任务,检查员工提交上来的代码.....");
    }
}

• Coder类

package cn.kox.homework.three;

/**
 * @ClassName: Coder
 * @Author: Kox
 * @Data: 2023/1/19
 * @Sketch:
 */
public class Coder {
    private String name;
    private int id;
    private int salary;

    public Coder(String name, int id, int salary) {
        this.name = name;
        this.id = id;
        this.salary = salary;
    }

    public void work() {
        System.out.println("工号为" + id +
                "基本工资为" + salary +
                "的程序员" + name +
                "正在努力的写着代码......");
    }
}

• 测试类

package cn.kox.homework.three;

/**
 * @ClassName: managerDemo
 * @Author: Kox
 * @Data: 2023/1/19
 * @Sketch:
 */
public class Demo {
    public static void main(String[] args) {
        Manager m1 = new Manager();
        m1.setName("Kox");
        m1.setId(521);
        m1.setSalary(20000);
        m1.setBonus(8000);
        m1.work();

        Coder c1 = new Coder("科克斯", 123, 15000);
        c1.work();
    }
}

题目4-定义猫类&狗类

定义猫类Cat。属性:毛的颜色color，品种breed。行为:吃饭eat()，抓老鼠catchMouse()
定义狗类Dog。属性:毛的颜色color，品种breed。行为:吃饭()，看家lookHome()
要求:
​ 1.按照以上要求定义Cat类和Dog类,属性要私有,生成空参、有参构造，set和get方法
​ 2.定义测试类,在main方法中创建该类的对象并给属性赋值(set方法或有参构造方法)
​ 3.调用成员方法,打印格式如下:

花色的波斯猫正在吃鱼.....
花色的波斯猫正在逮老鼠....
黑色的藏獒正在啃骨头.....
黑色的藏獒正在看家.....

• Cat类

package cn.kox.homework.four;

/**
 * @ClassName: Cat
 * @Author: Kox
 * @Data: 2023/1/19
 * @Sketch:
 */
public class Cat {
    private String color;
    private String breed;

    public Cat() {}

    public String getColor() {
        return color;
    }

    public void setColor(String color) {
        this.color = color;
    }

    public String getBreed() {
        return breed;
    }

    public void setBreed(String breed) {
        this.breed = breed;
    }

    public void eat() {
        System.out.println(color + "的" + breed + "正在吃鱼.....");
    }

    public void catchMouse() {
        System.out.println(color + "的" + breed + "正在抓老鼠.....");
    }
}

• Dog类

package cn.kox.homework.four;

/**
 * @ClassName: Dog
 * @Author: Kox
 * @Data: 2023/1/19
 * @Sketch:
 */
public class Dog {

    private String color;
    private String breed;

    public Dog(String color, String breed) {
        this.color = color;
        this.breed = breed;
    }

    public void eat() {
        System.out.println(color + "的" + breed + "正在吃饭.....");
    }

    public void lookHome() {
        System.out.println(color + "的" + breed + "正在看家.....");
    }
}

• 测试类

package cn.kox.homework.four;

/**
 * @ClassName: Demo
 * @Author: Kox
 * @Data: 2023/1/19
 * @Sketch:
 */
public class Demo {
    public static void main(String[] args) {
        Cat c1 = new Cat();
        c1.setColor("狸花猫");
        c1.setBreed("灰色");
        c1.catchMouse();
        c1.eat();

        Dog d1 = new Dog("橙色", "金毛");
        d1.eat();
        d1.lookHome();
    }
}