Java：创建对象内存分析 

 1 package com.jiemyx.oop.demo03;
 2 
 3 public class Pet {
 4     public String name;
 5     public int age;
 6 
 7     //无参构造：这里有没显示出来的无参数的构造方法
 8 
 9     public void shout(){
10         System.out.println("叫了一声");
11     }
12 }

 

 1 package com.jiemyx.oop.demo03;
 2 
 3 import com.jiemyx.oop.demo03.Pet;
 4 
 5 public class Application {
 6     public static void main(String[] args) {
 7         Pet dog = new Pet();
 8         dog.name = "旺财";
 9         dog.age = 3;
10         dog.shout();
11 
12         System.out.println(dog.name);
13         System.out.println(dog.age);
14 
15         Pet cat = new Pet();
16     }
17 }

运行结果：

叫了一声

旺财

3

 

 

posted @ 2021-04-11 21:51  杰myx  阅读(65)  评论(0)    收藏  举报