plz can anybody tell me,
What is the difference between constructor and init() method of servlet?
Every class has default constructor, and servlets are also user written classes then its constructor gets call and difference between constructor and init()?

The initilizer will run regardless of which constructor get called.

Keep in mind that the initialization happens after the call to the super.constructor and before any code in your constructor. This can make a difference if the super.constructor calls some method that the subclass has overriden which uses gloob. That method will see gloob uninitialized.

More Information..

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suresh

Hi,

The init() method is typically used to perform servlet initialization--creating or loading objects that are used by the servlet in the handling of its requests. Why not use a constructor instead? Well, in JDK 1.0 (for which servlets were originally written), constructors for dynamically loaded Java classes (such as servlets) couldn't accept arguments. So, in order to provide a new servlet any information about itself and its environment, a server had to call a servlet's init() method and pass along an object that implements the ServletConfig interface. Also, Java doesn't allow interfaces to declare constructors. This means that the javax.servlet.Servlet interface cannot declare a constructor that accepts a ServletConfig parameter. It has to declare another method, like init(). It's still possible, of course, for you to define constructors for your servlets, but in the constructor you don't have access to the ServletConfig object or the ability to throw a ServletException.

vj

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JDk1.0 does not support constructor to accept arguments Servlet Config.