面向对象06：创建对象内存分析

package com.oop.demo02;

public class Pet {
    public String name;
    public int age;
    
    //无参构造
    
    public void shout(){
        System.out.println("叫了一声");
    }
}

package com.oop.demo02;

public class Application3 {
    public static void main(String[] args) {
        Pet dog = new Pet();
        dog.name = "旺财";
        dog.age = 3;
        dog.shout();

        System.out.println(dog.name);
        System.out.println(dog.age);

        Pet cat = new Pet();
    }
}