Java 继承——2

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 text1;

public class People {
	
	protected double height;
	protected double weight;
	
	public void speak()
	{
		System.out.println("hello");
	}
	public void averageHeight()
	{
		System.out.println("身高");
	}
	public void averageWeight()
	{
		System.out.println("体重");
	}

}

 

package text1;

public class Chinapeople extends People {
	
	
	public void speak()
	{
		System.out.println("你好");
	}
	public void averageHeight()
	{
		System.out.println("中国身高");
	}
	public void averageWeight()
	{
		System.out.println("中国体重");
	}
	public void chinagongfu()
	{
		System.out.println("站如松");
	}

}

 

package text1;

public class Americanpeople extends People {
	
	public void speak()
	{
		System.out.println("Hello！！！！！！");
	}
	public void averageHeight()
	{
		System.out.println("height");
	}
	public void averageWeight()
	{
		System.out.println("weight");
	}
	public void americanboxing()
	{
		System.out.println("拳击");
	}

}

 

package text1;

public class text12 {

	public static void main(String[] args) {
		// TODO 自动生成的方法存根
		People p=new People();
		p.speak();
		p.averageHeight();
		p.averageWeight();
		Chinapeople c=new Chinapeople();
		c.speak();
		c.averageHeight();
		c.averageWeight();
		c.chinagongfu();
		Americanpeople a=new Americanpeople();
		a.speak();
		a.averageHeight();
		a.averageWeight();
		a.americanboxing();

	}

}