The Singleton design pattern addresses all of these concerns ... The singleton implemented in Example 1 is easy to understand. The ClassicSingleton class maintains a static reference to the ...

In both examples below I have omitted the necessary ... A singleton class, an implementation of the singleton design pattern, is a class of which only a single instance can exist.

The singleton design pattern is used to guarantee that only one instance of ... There are many kinds of factories that produce different kinds of things. For example, a factory can be used to produce ...