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Q 1 - Which of the following is correct about Factory design pattern.
Factory pattern is one of most used design pattern in Java. This type of design pattern comes under creational pattern as this pattern provides one of the best ways to create an object. In Factory pattern, we create object without exposing the creation logic to the client and refer to newly created object using a common interface.
Composite Entity pattern is used in EJB persistence mechanism.
Q 8 - Which of the following pattern is used to provide a centralized request handling mechanism so that all requests will be handled by a single handler?
