动物抽象问题

最新推荐文章于 2023-11-25 15:58:18 发布

转载最新推荐文章于 2023-11-25 15:58:18 发布 · 1k 阅读

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本文通过定义抽象类Animal和具体实现类Dog、Cat、Frog，展示了不同动物的互动方式和基本特征，如哺乳动物属性、食肉习性、情绪反应及声音表达，同时涵盖了水陆两栖动物的独特特性。

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package cn.itcast.demo;


 interface LandAnimal
{
	public int getNumberOfLegs();//返回有多少只脚
}
 
 interface WaterAnimal
{
	public boolean getGillfLag();//返回是否有腮
	public boolean getLaysEggs();//返回是否产卵
}

abstract class Animal
{
	public static final int SCRAED = 1;//情绪好
	public static final int COMFORTED = 2;//情绪不好，烦躁
	
	protected boolean manmmal = true;  //是否为哺乳动物
	protected boolean carnivorous = true; //是否为食肉动物
	
	protected int mood = COMFORTED;
	
	//判断是不是哺乳动物
	public boolean isManmmal()
	{
		return (manmmal);
	}
	//判断是不是食肉动物
	public boolean isCarnivorous()
	{
		return (carnivorous);
	}
	
	abstract public String SayHello() ; 
	abstract public String SayHello(int moodval);
	
 
	public void setMood(int newValue)
	{
		mood = newValue;
	}
	public int getMood()
	{
		return mood;
	}
	 
	
}

class Dog extends Animal implements LandAnimal
{

	private int numberOfLegs =4;
	public Dog()
	{
		manmmal  = true; //是哺乳动物
		carnivorous = true; //是肉食动物
	}
	@Override
	public int getNumberOfLegs() {
		// TODO Auto-generated method stub
		
		return numberOfLegs;
	}

	@Override
	public String SayHello() {
		// TODO Auto-generated method stub
		
		return("摇摇尾巴");
	}

	@Override
	public String SayHello(int moodval) {
		// TODO Auto-generated method stub
		
		this.setMood(moodval);
		switch(mood)
		{
		case SCRAED:
			 return("呜呜叫");
		case COMFORTED:
			 return("汪汪汪叫");
		}
		return("摇摇尾巴");
	}
		
}

class Cat extends Animal implements LandAnimal
{
    private int numberOfLegs = 4;
    private boolean tailFlag = true;
    public Cat()
    {
    	manmmal  = true; //是哺乳动物
		carnivorous = true; //是肉食动物
    }
	@Override
	public int getNumberOfLegs() {
		// TODO Auto-generated method stub
		return numberOfLegs;
	}

	@Override
	public String SayHello() {
		// TODO Auto-generated method stub
		return("喵喵喵叫");
	}

	@Override
	public String SayHello(int moodval) {
		// TODO Auto-generated method stub
		this.setMood(moodval);
		switch(mood)
		{
		case SCRAED:
			 return("嘶嘶叫");
		case COMFORTED:
			 return("咕噜咕噜叫");
		}
		return("喵喵喵叫");
	 
	}
	
}

class Frog extends Animal implements LandAnimal,WaterAnimal
{
	private boolean gillFlag = true;
	private boolean laysEggs = true;
	private int numberOfLegs = 4;
	private boolean taiFlag = true;
	
	public Frog()
	{
		manmmal = false;
		carnivorous = false;
	}
	
	@Override
	public boolean getGillfLag() {
		// TODO Auto-generated method stub
		return false;
	}

	@Override
	public boolean getLaysEggs() {
		// TODO Auto-generated method stub
		return laysEggs;
	}

	@Override
	public int getNumberOfLegs() {
		// TODO Auto-generated method stub
		return numberOfLegs;
	}

	
	public String SayHello() {
		// TODO Auto-generated method stub
		return("呱呱叫");
 
	}

	@Override
	public String SayHello(int moodval) {
		// TODO Auto-generated method stub
		this.setMood(moodval);
		switch(mood)
		{
		case SCRAED:
			 return("扑通一声跳入水中");
		case COMFORTED:
			 return("呱呱呱");
		}
		return("呱呱呱");
	}
	
}

public class AnimalTest {

	public static void main(String[] args) {
		// TODO Auto-generated method stub
		Dog animal1 =new Dog();
		Cat animal2 = new Cat();
		Frog animal3 = new Frog();
		if(animal1.isManmmal())
			System.out.println("狗是哺乳动物");
		else
			System.out.println("狗不是哺乳动物");
		if(animal1.isCarnivorous())
			System.out.println("狗是肉食动物");
		else
			System.out.println("狗不是肉食动物");
		System.out.println("狗通常情况下，和人打招呼的方式为："+animal1.SayHello());
		System.out.println("狗被安抚的情况下："+animal1.SayHello(Animal.COMFORTED));
		System.out.println("狗烦躁的情况下："+animal1.SayHello(Animal.SCRAED));
		System.out.println("狗腿：："+animal1.getNumberOfLegs());
		
		
		 
		if(animal2.isManmmal())
			System.out.println("猫是哺乳动物");
		else
			System.out.println("猫不是哺乳动物");
		if(animal2.isCarnivorous())
			System.out.println("猫是肉食动物");
		else
			System.out.println("猫不是肉食动物");
		System.out.println("猫通常情况下，和人打招呼的方式为："+animal2.SayHello());
		System.out.println("猫被安抚的情况下："+animal2.SayHello(Animal.COMFORTED));
		System.out.println("猫烦躁的情况下："+animal2.SayHello(Animal.SCRAED));
		System.out.println("猫腿：："+animal2.getNumberOfLegs());
		
		 
		if(animal3.isManmmal())
			System.out.println("青蛙是哺乳动物");
		else
			System.out.println("青蛙不是哺乳动物");
		if(animal3.isCarnivorous())
			System.out.println("青蛙是肉食动物");
		else
			System.out.println("青蛙不是肉食动物");
		System.out.println("青蛙通常情况下，和人打招呼的方式为："+animal3.SayHello());
		System.out.println("青蛙被安抚的情况下："+animal3.SayHello(Animal.COMFORTED));
		System.out.println("青蛙烦躁的情况下："+animal3.SayHello(Animal.SCRAED));
		
		if(animal3.getLaysEggs())
			System.out.println("青蛙产卵");
		else
			System.out.println("青蛙不产卵");
		if(animal3.getGillfLag())
			System.out.println("青蛙有腮");
		else
			System.out.println("青蛙没腮");
		
		
		System.out.println("青蛙腿：："+animal3.getNumberOfLegs());
		
		
	}

}