Chapater4 實驗一

People.java


public class People {
	protected double height,weight;
	public void speakHello(){
		System.out.println("yayaya");
	}
	public void averageHeight(){
		height=173;
		System.out.println("averageHeight"+height);
		
	}
	public void averageWeight(){
		weight=70;
		System.out.println("averageWeight"+weight);
		
	}
}




CinaPeople.java

public class ChinaPeople extends People {
	public void chinaGongFu(){
		System.out.println("坐如鐘。站如鬆，彎如弓");
		System.out.println("直拳，勾拳，組合拳");
		
		
		
	}
    public void speakHello(){
    	System.out.println("你好");
    }
    	public void averageHeight(){
    		 height=168.68;
    		 System.out.println("中國人的平均身高"+weight+"釐米");
    		
    		
    	}
    	public void averageWeight(){
   		weight=70.0;
    		System.out.println("中國人的平均體重是"+weight+"千克");
    	}
    }


AmericanPeople.java

public class AmericanPeople extends People{
    public void chinaGongFu(){
    	System.out.println("坐如鐘，站如鬆，睡如弓");
    }
    public void averageHeight(){
    	height=166.0;
    	System.out.println("Aemerican's average height is"+height+"釐米");
    }
    public void averageWeight(){
    	weight=75.0;
    	System.out.println("American's average weight is:"+weight+"千克");
    }
    public void speakHello(){
    	System.out.println("how do you do!");
 }

}



BeijingPeople.java

public class BeijingPeople extends ChinaPeople {
	public void beijingOpera(){
		System.out.println("花臉，青衣，花旦和老生");
		
	}
	
    public void averageHeight(){
    	height=172.5;
    	System.out.println("北京人的平均身高是:"+height+"釐米");
    }
    public void averageWeight(){
    	weight=65.0;
    	System.out.println("北京人的平均體重是"+weight+"千克");
    }
    public void speakHello(){
    	System.out.println("Hello");
    	
    }
}


Test.java


public class Test {

		     public static void main(String args[]){
		    	 ChinaPeople c=new ChinaPeople();
		    	 AmericanPeople a=new AmericanPeople();
		    	 BeijingPeople b=new BeijingPeople();
		    	 c.speakHello();
		    	 b.speakHello();
		    	 a.speakHello();
		    	 b.averageHeight();
		    	 a.averageHeight();
		    	 c.averageHeight();
		    	 c.averageWeight();
		    	 a.averageWeight();
		    	 b.averageWeight();
		    	 b.beijingOpera();
		    	 c.chinaGongFu();
		    	 a.chinaGongFu();
		    	
		     }





	}