java代码练习 work 058

work058.java

package test03;

public class work058
{

	public static void main(String[] args)
	{
		//Human1 h1 = new Human1();  //抽象类是不可实例化的
		//h1.say();
		
		YellowPeople1 y1 = new YellowPeople1();
		y1.say();
		
	}

	
	
}

abstract class Human1
{
	public abstract void say();
}

class YellowPeople1 extends Human1
{
	public void say()
	{
		System.out.println("yellowpeople.say");
	}
}