Thursday, October 25, 2007

Java Interview Questions -Part 3


Struts
1. What is Struts?
Struts is a web page development framework and an open source software that helps developers build web applications quickly and easily. Struts combines Java Servlets, Java Server Pages, custom tags, and message resources into a unified framework. It is a cooperative, synergistic platform, suitable for development teams, independent developers, and everyone between.

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EJB
1. What is session Facade
Session Facade is a design pattern to access the Entity bean through local interface than acessing directly. It increases the performance over the network. In this case we call session bean which on turn call entity bean
2. what is the difference between session and entity bean?
Session beans are business data and have not any persistance. Entity beans are Data Objects and have more persistance.

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