how many design pattern r there? and wht design pattern u
use and why ?

Answer Posted / ravikiran

Design pattern is the solution for a recurring problem.
Mvc-2 design pattern---For the sake of seperation between
presentation logic and business logic
Data Access Object-----For maintaining databae logic
seperatly
Data Transfer Object---To Maintain Getters and setters for
database columns

Is This Answer Correct ?    2 Yes 0 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

What do you mean by local variable and instance variable?

514


Does treeset allow null in java?

514


What do you mean Abstraction in java?

611


What does index mean in java?

540


Why are variables important in research?

556






Do I need java on my computer?

528


Do we have pointers in java?

532


What are aggregate functions explain with examples?

526


Explain serialization and deserialization in java?

553


Is age a discrete variable?

528


What is a generic code?

528


What is final class?

577


What is the collections api in java programming?

555


What is boolean law?

520


What is a list in java?

508