class Singleton
{
        private static Singleton instance;
        private Singleton(){}
        public static Singleton getInstance()
        {
                if(instance == null)
                {
                        instance = new Singleton();
                }
                return instance;
        }
        public static void main(String[] args)
        {
                Singleton s1 = Singleton.getInstance();
                Singleton s2 = Singleton.getInstance();
                System.out.println(s1 == s2);
        }
}

大神在哪里

S1和S2难道不是new出来的吗，new出来的就不相等了啊