作业-继承2

Posted 2020-08-09

创建如下三个类：（People类中的三个方法分别输出一些信息，ChinaPeople

和AmericanPeople类重写父类的三个方法）。

package T092202;

public class People {
    protected double height;
    protected double weight;
    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 speakHello()
    {
        System.out.println("你好！！！");
    }
    public void averageHeight()
    {
        System.out.println("平均身高是："+height);
    }
    public void averageWeight()
    {
        System.out.println("平均体重是："+weight);
    }
}




package T092202;

public class ChinaPeople extends People {
    public void speakHello()
    {
        System.out.println("你好，我是中国人！");
    }
    public void averageHeight()
    {
        System.out.println("中国人的平均身高是："+height);
    }
    public void averageWeight()
    {
        System.out.println("中国人的平均体重是："+weight);
    }
    public void chinaGongfu()
    {
        System.out.println("我会中国功夫：坐如钟，站如松，睡如弓！");
    }
}



package T092202;

public class AmericanPeople extends People {
    public void speakHello()
    {
        System.out.println("你好，我是美国人！");
    }
    public void averageHeight()
    {
        System.out.println("美国人的平均身高是："+height);
    }
    public void averageWeight()
    {
        System.out.println("美国人的平均体重是："+weight);
    }
    public void amercianBoxing()
    {
        System.out.println("我会美式拳击：直拳，上勾拳！");
    }
}



package T092202;

public class Test {
    public static void main(String[] args) {
        ChinaPeople chp=new ChinaPeople();
        chp.height=175;
        chp.weight=140;
        chp.speakHello();
        chp.averageHeight();
        chp.averageWeight();
        chp.chinaGongfu();
        AmericanPeople amp=new AmericanPeople();
        amp.setHeight(185);
        amp.setWeight(170);
        amp.speakHello();
        amp.averageHeight();
        amp.averageWeight();
        amp.amercianBoxing();
    }
}