创建对象内存分析

 1 package com.oop.demo3;
 2 
 3 public class Pet {
 4     public String name;
 5     public int age;
 6     //无参构造，默认有的
 7     public void shout(){
 8         System.out.println("叫了一声");
 9     }
10 }
11 /*
12     public static void main(String[] args) {
13         Pet dog = new Pet();
14         dog.name="旺财";
15         dog.age=3;
16         dog.shout();
17         System.out.println(dog.name);
18         System.out.println(dog.age);
19 
20         Pet cat = new Pet();
21  */