public enum Singleton {
INSTANCE;
private static User user = new User();
User Singleton() {
return user;
}
}
User user = Singleton.INSTANCE.Singleton();
User user1 = Singleton.INSTANCE.Singleton();
System.out.println(user);
System.out.println(user1);
结果：
test.User@78308db1
test.User@78308db1
