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Design patterns


Joined: Nov 22, 2000
Posts: 2
Hi there,
I was going thru one of faq, I didnt understood the question which allegedly was asked in the follow-up exam which goes something like this "what design patterns you used and why??", can anybody explain me what do you mean by design patterns and how many design patterns are there to implement a program? just to get an idea and access myself to write the exam.
Thanks in anticipation.
Roseanne Zhang
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Joined: Nov 14, 2000
Posts: 1953
I think you need to change your name properly accoding to JavaRanch rules:
Tha paper here writtern by a honor member who has passed SCJD recently may help you a bit on the topic:

Joined: Mar 20, 2000
Posts: 26

Joined: Mar 20, 2000
Posts: 26
When programming people with lot of programming experience have found that usually there are some snippets of code which is quite often repeated most of the time so they have taken em generalized piece of code and kept it aside and that becomes "Design pattern" for that particular type of code.
You can learn more about design patterns by reading "Desing Patterns"
you can think of design patterns as pearl of wisdom from you elders so that you do not go about reinventing the wheel.
Hope it helps.
PS: you can e-mail me at and i can even send you a free digital book named "design patterns" by James W. cooper.
Jerry Pulley
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Joined: Sep 19, 2000
Posts: 221
Please read the JavaRanch policy on user names at
Roseanne Zhang
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Joined: Nov 14, 2000
Posts: 1953
Read James Cooper's Book and Bruce Eckel's free Java/design patterns Books from here:
shailesh sonavadekar
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Joined: Oct 12, 2000
Posts: 1874
Rohit , Welcome to javaranch.
Please Read the JavaRanch naming policy for more details.
Javaranch appreciates your cooperation to comply with the official naming policy.

It is sorta covered in the JavaRanch Style Guide.
subject: Design patterns
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