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();    }}