技術標籤：java

Java的繼承例子——貓和老鼠

程式碼

貓類

package com.softeem.lesson08.example;

public class Cat {

	private String name;
	private double weight;

	public Cat(String name, double weight) {
		this.name = name;
		this.weight = weight;
	}

	public String getName() {
		return name;
	}

	public void setName(String name)
 
 {
		this.name = name;
	}

	public double getWeight() {
		return weight;
	}

	public void setWeight(double weight) {
		this.weight = weight;
	}

	public boolean catchMouse(Mouse m) {
		// 判斷貓的體重是否小於老鼠體重的5倍
		if (this.weight <= m.getWeight() * 5) {
			// 貓抓住老鼠，體重增加
			this.weight += m.getWeight() / 2;
			System.
 
out.println(name + "抓住了" + m.getName() + ",當前體重:" + this.weight);
			return true;
		}
		// 老鼠逃跑
		m.runaway();
		this.weight -= m.getWeight() / 4;
		System.out.println("老鼠" + m.getName() + ",成功逃脫," + this.name + "體重減少，當前體重:" + this.weight);

		return false
 
;
	}
}

老鼠類

package com.softeem.lesson08.example;

public class Mouse {

	private String name;
	private double weight;
	
	public Mouse(String name,double weight) {
		this.name = name;
		this.weight = weight;
	}
	
	public String getName() {
		return name;
	}
	
	public void setName(String name) {
		this.name = name;
	}

	public double getWeight() {
		return weight;
	}

	public void setWeight(double weight) {
		this.weight = weight;
	}

	public void runaway() {
		System.out.println("大笨貓，來抓我丫。。。。");
	}
}

測試類

package com.softeem.lesson08.example;

import java.util.Scanner;

public class TomAndJerry {

	public static void main(String[] args) {
		
		//初始化貓物件
		Cat c = new Cat("Tom", 3);
		System.out.println("遊戲開始...");
		Scanner sc = new Scanner(System.in);
		while(true) {
			//接收輸入：老鼠體重
			System.out.println("請輸入老鼠體重:");
			int w = sc.nextInt();
			//建立老鼠物件
			Mouse m = new Mouse("Jerry", w);
			//判斷是否抓住老鼠
//			if(!c.catchMouse(m)) {
//				//一旦老鼠逃脫則遊戲結束
//				System.out.println("遊戲結束");
//				break;
//			}
			c.catchMouse(m);
		}
	}

}