Unmei Is Just A Brief Hanabi

package com.sf.test.test;

public class Hanyou {

    private Hanyou() {
    }

    private static class Unmei {
        private static Hanyou hanyou = new Hanyou();
    }

    public static Hanyou getInstance() {
        return Unmei.hanyou;
    }

    public static void main(String[] args) {
        System.out.println(Hanyou.getInstance());
    }

}