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Single pattern

rex tony
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Joined: Aug 29, 2007
Posts: 159
Single pattern with simple example code in java
Jan Cumps
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Joined: Dec 20, 2006
Posts: 2477
    
    7

Rex,
can you give a little more information. Your post is not clear to me.

Regards, Jan


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Ulf Dittmer
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Joined: Mar 22, 2005
Posts: 39547
    
  27
Do you mean Singleton?


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rex tony
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Joined: Aug 29, 2007
Posts: 159
What are the steps to implement Singleton Design pattern in our java class
Stan James
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Joined: Jan 29, 2003
Posts: 8791
The most common implementations use the following ingredients:

* Private constructor - prevents any other class from making an instance

* Static getInstance() method - gives clients a way to get the one instance

* Static variable - holds the one instance

Can you picture how those would work together? See if you can code something up and share what you make. It will be a lot more memorable than just copying an answer we give you.


A good question is never answered. It is not a bolt to be tightened into place but a seed to be planted and to bear more seed toward the hope of greening the landscape of the idea. John Ciardi
rex tony
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Joined: Aug 29, 2007
Posts: 159
Thanks james i got some idea from your concepts.Can you tell me what are the pros and cons.
rex tony
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Joined: Aug 29, 2007
Posts: 159
James,
Can you tell me all the design pattern procedure like this with pros and cons
rex tony
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Joined: Aug 29, 2007
Posts: 159
James,
Can you tell me all the design pattern procedure like this with pros and cons
Kevin Smither
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Joined: Oct 22, 2007
Posts: 30
gosh just google it, i'm sure you'll get 123456789 hits! sorry to be blunt but there is oodles of information out there on this pattern.
Peer Reynders
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Joined: Aug 19, 2005
Posts: 2906
See OO, Patterns, UML and Refactoring FAQ: Singleton Pattern.


"Don't succumb to the false authority of a tool or model. There is no substitute for thinking."
Andy Hunt, Pragmatic Thinking & Learning: Refactor Your Wetware p.41
 
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