5.21 面向对象案例分析三

• 狗的一个类,包括 名字，颜色，年龄；典型的java类的一段代码

class Dog {
    private String name;
    private String color;
    private int age;
    public Dog(){}
    public Dog(String name,String color,int age){
        this.name = name;
        this.color = color;
        this.age = age;
    }
    public String getInfo(){
        return "🐶的名字:" + this.name + ",颜色:" + this.color + ",年龄:" + this.age;
    }
}

public class HelloWorld {
    public static void main(String[] args){
        Dog dog = new Dog("旺财","白色",20);
        System.out.println(dog.getInfo());
    }
    
}