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初始化阶段的意义

/* * Copyright (c) 2019 maoyan.com * All rights reserved. * *//** * 在这里编写类的功能描述 * * @author wangkai * @created 2019/12/31 */public class MyTest5 {
       public static void main(String[] args) {
           Singleton singleton=Singleton.getInstance();        System.out.println(Singleton.counter1);        System.out.println(Singleton.counter2);    }}class Singleton{
       public  static int counter1;    private static Singleton singleton=new Singleton();    private Singleton(){
           counter1++;        counter2++;        System.out.println(counter1);        System.out.println(counter2);    }    public static int counter2=0;    public static Singleton getInstance(){
           return singleton;    }}

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