Singleton using an enum in Java is generally a way to declare an enum singleton. An enum singleton may contain instance variables and instance methods. For ... ... <看更多>
Enum Singleton, Singleton without use of Enum (eager initialization), Thread-safe lazy initialization using holder class | Bill Pugh Singleton ... ... <看更多>
//http://viralpatel.net/blogs/2009/01/java-singleton-design-pattern-tutorial-example-singleton-j2ee-design-pattern.html. public class SimpleSingleton {. ... <看更多>
