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>

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//http://viralpatel.net/blogs/2009/01/java-singleton-design-pattern-tutorial-example-singleton-j2ee-design-pattern.html. public class SimpleSingleton {. ... <看更多>

Typically, "singleton" refers to an implementation strategy, ... and almost always an enum can be used for a java singleton. I do it myself. ... <看更多>