Why is a constructor needed in a servlet even if we use the init method?
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What is HTTP Session ?
why business logic written using servlets not in jsp. Jsp used for presentation purpose. serlvet used for coding business logic and controller logic. Reason for using servlets in business logic.
How to set a cookie that is persisted only for the duration fo the clients session?
What method is used to create database connection in servlets?
what are the way a client can be tracked?
What are different types of Servlets?
when the jsp page is translated to servlet?
What are common tasks performed by Servlet Container?
What is difference between cookies and httpsession?
When a servlet accepts a call from a client, it receives two objects. What are they?
Can we define constructor in Servlet class?
How the typical servlet code look like ?
Core Java 
