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See this thread and this one for details.
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Win a copy of The Java EE 7 Tutorial Volume 1 or Volume 2 this week in the Java EE forum
or jQuery UI in Action in the JavaScript forum!
JavaRanch » Java Forums » Certification » Programmer Certification (SCJP/OCPJP)
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Author

Design pattern

vishwas cheluva n
Greenhorn

Joined: Apr 12, 2013
Posts: 1
what is the use of singleton design pattern??? and wat is the difference between singleton and factory???
Archana Nanjundarao
Greenhorn

Joined: Sep 26, 2007
Posts: 12
Singleton helps in ensuring that only one instance of the class exists. Factory pattern is used to create objects of the class without exposing the instantiation logic.


Thanks,
Archana Rao
 
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subject: Design pattern