private int age; // 表示猫咪的年龄 pri

import java.awt.Color;

public class Cat {
private String name; // 表示猫咪的名字
private int age; // 表示猫咪的年龄
private double weight; // 表示猫咪的重量
private Color color; // 表示猫咪的颜色

public Cat(String name, int age, double weight, Color color) { // 初始化猫咪的属性
    this.name = name;
    this.age = age;
    this.weight = weight;
    this.color = color;
}

@Override
public String toString() { // 重写toString()方法
    StringBuilder sb = new StringBuilder();
    sb.append("名字：" + name + "\n");
    sb.append("年龄：" + age + "\n");
    sb.append("重量：" + weight + "\n");
    sb.append("颜色：" + color + "\n");
    return sb.toString();
}

}