In this program we are going to make a such a servlet which will count and displays the number of times it has been accessed and by reading the init parameter to know from where the counting will begin.
In this program we are going to make use of the init method of the Servlet interface which takes one argument of ServletConfig. Firstly declare a variable counter which will have the initial value of the counter. The init() method accepts an object which implements ServletConfig interface. It uses the method getInitParameter() method of the ServletConfig interface to the value of the init parameter initial which we have defined in the deployment descriptor file. You need to parse the String value which you will get from the getInitParameter() method to a Integer.
The code of the program is given below:
web.xml file for this program:
The output of the program is given below:
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