|NO.Z.00055|——————————|BigDataEnd|——|Java&static关键字继承.V15|——|Java.v15|Dog类|DogTest类|

一、Dog类和DogTest类的实现

package com.yanqi.task08;

public class Animal {
    private  String name;
    private String color;

    public Animal() {
    }
    public Animal(String name, String color) {
        setName(name);
        setName(color);
    }

    public String getName() {
        return name;
    }
    public void setName(String name) {
        this.name = name;
    }
    public String getColor() {
        return color;
    }
    public void setColor(String color) {
        this.color = color;
    }

    public void show() {
        System.out.println("名字：" + getName() + ",颜色：" + getColor());
    }
}

二、编程代码

package com.yanqi.task08;

public class Dog extends Animal {
    private int tooth;

    public Dog() {
        super(); // 表示调用父类的无参构造方法  自动保存
    }
    public Dog(String name, String color, int tooth) {
        super(name, color); // 表示调用父类的有参构造方法
        setTooth(tooth);
    }

    public int getTooth() {
        return tooth;
    }
    public void setTooth(int tooth) {
        if (tooth > 0) {
            this.tooth = tooth;
        } else {
            System.out.println("牙齿数量不合理哦！！！");
        }
    }

    @Override
    public void show() {
        super.show();
        System.out.println("牙齿数量是：" + getTooth());
    }
}

三、编程代码

package com.yanqi.task08;

public class DogTest {

    public static void main(String[] args) {
        // 1.使用无参方式构造Dog类型的对象并打印特征
        Dog d1 = new Dog();
        d1.show(); // null null 0

        // 2.使用有参方式构造Dog类型的对象并打印特征
        Dog d2 = new Dog("旺财", "白色", 10);
        d2.show(); // 旺财 白色  10
    }
}

四、编译打印：ctrl+shift+F10

D:\JAVA\jdk-11.0.2\bin\java.exe "-javaagent:D:\IntelliJIDEA\IntelliJ IDEA 2019.3.3\lib\idea_rt.jar=63006:D:\IntelliJIDEA\IntelliJ IDEA 2019.3.3\bin" -Dfile.encoding=UTF-8 -classpath E:\NO.Z.10000——javaproject\NO.H.00001.javase\javase\out\production\javase com.yanqi.task08.DogTest
名字：null,颜色：null
牙齿数量是：0
名字：白色,颜色：null
牙齿数量是：10

Process finished with exit code 0

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Walter Savage Landor:strove with none,for none was worth my strife.Nature I loved and, next to Nature, Art:I warm'd both hands before the fire of life.It sinks, and I am ready to depart

                                                                                                                                                   ——W.S.Landor

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