testinherit.java

主要是对于JAVA的编程的基本语言 希望能够帮得上你。

package Inheritance;

class Human{
	
	String name;
	int age;
	//构造方法
	public Human(String name,int age){
		this.name=name;
		this.age=age;
		System.out.println("Human: "+name+", age="+age);
	}
	
	public void breathe(){
		System.out.println(name+" is breathing.");
	}
	public void greet(){
		System.out.println("Nice to meet you, "+name);
	}
}

class Man extends Human{	
	
	int height, weight;
	
	//构造方法	
	public Man(String name,int age){
		super(name,age);	
		System.out.println("Man: "+name+", age="+age);	
	}
	//构造方法
	public Man(String name, int age, int height, int weight){
		super(name,age);
		this.height=height;
		this.weight =weight;		
		System.out.println("Man: "+name+", age="+age+", height="+height+", weight="+weight);
	}
	
	//方法的覆盖
	
	public void greet(){
		System.out.println("Nice to meet you, Mr. "+name);
	}
	
	public void sing(){
		System.out.println("Mr. "+name+" is singing.");
	}
}

class Soldier extends Human{
	String type;
	
	public Soldier(String name, int age, String type){
		super(name,age);
		this.type=type;		
	}
	
	void fire(){
		System.out.println(name+" is firing.");
	}
}

public class TestInherit {
	public static void main(String[] args) {		
		Human h=new Human("Alice",20);
		h.greet();
		
		Man m1=new Man("Howard",30);		
		m1.breathe();
		m1.sing();		
		m1.greet();
		
		Man m2=new Man("Mike",23,170,65);	
		m2.breathe();
		m2.sing();		
		m2.greet();	
		
		Soldier soldier=new Soldier("White",23,"Land");
		soldier.breathe();
		soldier.greet();
		soldier.fire();		
	}
}