//People类

package 继承;

public class People {

private String name;

private double height;

private double 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 speakHello()

{

System.out.println("Hello");

}

}

//Chinapeople类

package 继承;

//继承

//Object 是所有类的父类

public class Chinapeople extends People {

public void Chinesekongfu()

{

System.out.println("坐如钟，站如松");

}

//重写 也叫覆盖

public void speakHello()

{

System.out.println("你好");

}

}

//Americanpeople类

package 继承;

public class Americanpeople extends People {

public void americanBoxing()

{

System.out.println("直拳，勾拳");

}

}

//Testpeople类

package 继承;

public class Textpeople {

public static void main(String[] args) {

People p=new People();

p.speakHello();

System.out.println("中国人：");

Chinapeople cp=new Chinapeople();

cp.speakHello();

cp.Chinesekongfu();

System.out.println("美国人：");

Americanpeople ap=new Americanpeople();

ap.speakHello();

ap.americanBoxing();

}

}

运行结果