题解 | #创建单例对象#

public class Main {

    public static void main(String[] args) {
        Singleton s1 = Singleton.getInstance();
        Singleton s2 = Singleton.getInstance();
        System.out.println(s1 == s2);
    }

}

class Singleton {

    private static Singleton instance = new Singleton();

    private Singleton() {

    }

    //write your code here......
    // public static Singleton getInstance(){
    //     if(instance == null){
    //         instance = new Singleton();
    //     }
    //     return instance;
    // }
    public static Singleton getInstance(){
        return instance;
    }

}