Java 싱글턴

Jmnote (토론 | 기여)님의 2021년 10월 18일 (월) 22:44 판 (새 문서: ==개요== ;Java Singleton ;Java 싱글턴 <syntaxhighlight lang='console'> package com.example; public class App { public static void main(String[] args) throws InterruptedExce...)
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1 개요

Java Singleton
Java 싱글턴
package com.example;

public class App {
    public static void main(String[] args) throws InterruptedException {
        methodA();
        methdoB();
    }

    private static void methodA() {
        MusicPlayer musicPlayer = MusicPlayer.getInstance();
        System.out.println(musicPlayer);
    }

    private static void methdoB() {
        MusicPlayer musicPlayer = MusicPlayer.getInstance();
        System.out.println(musicPlayer);
    }

}

class MusicPlayer {
    private static final MusicPlayer instance = new MusicPlayer();

    private MusicPlayer() {
    }

    public static MusicPlayer getInstance() {
        return instance;
    }
}


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