[JAVA] Singleton Pattern

Singleton Pattern Only one instance is created
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This page describes the following ・ Singleton Pattern sample code

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Check with the following class structure

class Explanation
singleton.class Create only one instance
user(Main.class) Create an instance
  • User Includes the meaning that other developers use this pattern


class singleton{
  private static singleton singleton = new singleton();
  private singleton(){}
  public  static singleton newInstance(){return singleton;}


public static  void main(String[] args){
  singleton s1 =singleton.newInstance();

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