Simple and thread-safe two single-mode Java programs

Source: Internet
Author: User

/**
* Specific instructions See http://www.cnblogs.com/coffee/archive/2011/12/05/inside-java-singleton.html
*/


package Com.work.pattern; Public class Singleton2 {
Private Static New Singleton2 (); Private Singleton2 () { } publicstatic Singleton2 getinstance () { return instance;} }

 PackageCom.work.pattern;/*** Single-instance mode innovation! Written by the IOC author of Google. It is initialized only at the time of the call! and thread safe * Super Bull!  * */ Public classSingleton {Static classSingletonholder {StaticSingleton instance =NewSingleton (); }     Public StaticSingleton getinstance () {returnsingletonholder.instance; }}

Simple and thread-safe two single-mode Java programs

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