JAVA 面向对象 鸡兔同笼 代码

以下是一个简单的 Java 代码实现鸡兔同笼问题：

Animal.java

public abstract class Animal {
    protected int legs; // 脚的数量
    protected int heads; // 头的数量

    public Animal(int legs, int heads) {
        this.legs = legs;
        this.heads = heads;
    }

    public abstract void calculate(); // 抽象方法，计算动物的数量
}

Chicken.java

public class Chicken extends Animal {
    public Chicken(int legs, int heads) {
        super(legs, heads);
    }

    @Override
    public void calculate() {
        int chickenCount = 0;
        int rabbitCount = 0;
        for (int i = 0; i <= heads; i++) {
            int j = heads - i;
            if (i * 2 + j * 4 == legs) {
                chickenCount = i;
                rabbitCount = j;
                break;
            }
        }
        System.out.println("鸡的数量为：" + chickenCount);
    }
}

Rabbit.java

public class Rabbit extends Animal {
    public Rabbit(int legs, int heads) {
        super(legs, heads);
    }

    @Override
    public void calculate() {
        int chickenCount = 0;
        int rabbitCount = 0;
        for (int i = 0; i <= heads; i++) {
            int j = heads - i;
            if (i * 2 + j * 4 == legs) {
                chickenCount = i;
                rabbitCount = j;
                break;
            }
        }
        System.out.println("兔子的数量为：" + rabbitCount);
    }
}

Main.java

import java.util.Scanner;

public class Main {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        System.out.println("请输入鸡兔总的脚数：");
        int legs = scanner.nextInt();
        System.out.println("请输入鸡兔总的头数：");
        int heads = scanner.nextInt();
        Chicken chicken = new Chicken(legs, heads);
        Rabbit rabbit = new Rabbit(legs, heads);
        chicken.calculate();
        rabbit.calculate();
    }
}

这里使用了抽象类 Animal 来定义共有的属性和方法，而鸡类 Chicken 和兔子类 Rabbit 继承了 Animal 类，并重写了 calculate() 方法。在 Main 类中，读取用户输入的数据，创建 Chicken 和 Rabbit 对象，并调用它们的 calculate() 方法来计算鸡和兔子的数量。