singleton class java - 43816

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  • Posted on: Wed 19 Feb, 2014
  • Request id: # 43809
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Java - How to use Singleton Class ? The Singleton's purpose is to control object creation, limiting the number of obejcts to one only. Since there is only one Singleton instance, any instance fields of a Singleton will occur only once per class, just like static fields. Singletons often control access to resources such as database connections or sockets. For example, if you have a license for only one connection for your database or your JDBC driver has trouble with multithreading, the Singleton make