kids3.java

来自「java 教程源码」· Java 代码 · 共 53 行

//c4:Kids3.java
//author:ZhangHongbin 
//This program is protected by copyright laws.
//Constructors among class and superclass.  
class Animal
{
	
	Animal()
	{
		System.out.println("Animal's constructor ");
	}
	Animal(int num)
	{
		System.out.println("Animal's constructor="+num);
	}
}
class Mankind extends Animal 
{
	
	Mankind()
	{
		System.out.println("Mankind's constructor ");
	}
	Mankind(int num)
	{
		System.out.println("Mankind's constructor="+num);
	}
		
}
public class Kids3 extends Mankind
{
	Kids3()
	{
		System.out.println("Kids3'constructor");
	}
	Kids3(int num)
	{
		System.out.println("Kids3'constructor="+num);
	}

	public static void main(String[] args)
	{
		//System.out.println("start Mankind's constructor");
		//Mankind somePerson1=new Mankind();
		//Mankind somePerson2=new Mankind(100);
		//System.out.println("end Mankind's constructor");
		System.out.println("start kids'constructor ");
		Kids3 someKid1=new Kids3();
		Kids3 someKid2=new Kids3(999);
		System.out.println("end kids'constructor");
	}
}