package zuoye2;public class People {	protected double height;	protected double weight;	private String guojia;		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 String getGuojia() {		return guojia;	}	public void setGuojia(String guojia) {		this.guojia = guojia;	}			public People() {		super();	}	public People(double height, double weight) {		super();		this.height = height;		this.weight = weight;	}		public  void speackHello()	{		System.out.println("Hello");	}	public  void averageHeight()	{		System.out.println("平均身高是：");	}	public  void averageweight()	{		System.out.println("平均体重是：");	}}

package zuoye2;public class ChinaPeople extends People {			public void chinaGongfu()	{		System.out.println("坐如钟，站如松，行如风，睡如弓");	}	public  void speackHello()	{		System.out.println("你好");	}}

package zuoye2;public class AmericanPeople extends People {		public void americanBoxing()	{		System.out.println("直拳，勾拳");	}}

package zuoye2;public class Ceshi_people {	public static void main(String[] args) {		ChinaPeople c=new ChinaPeople();				c.setHeight(180.0);		c.setWeight(70.0);		c.setGuojia("中国");		c.speackHello();		System.out.println(c.getGuojia());		c.averageHeight();System.out.println(c.getHeight());		c.chinaGongfu();				System.out.println("");				AmericanPeople a=new AmericanPeople();		a.setHeight(175.0);		a.setWeight(80.0);		a.setGuojia("美国佬");		a.speackHello();		System.out.println(a.getGuojia());		a.averageHeight();		System.out.println(a.getHeight());		a.averageweight();		System.out.println(a.getWeight());		a.americanBoxing();					}}