创建对象内存分析

 

 

package com.oop.demo3;

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