In this example we are going to know how we can make a program on counter which will keep track how many times the servlet has been accessed.
To make this program firstly we have to make one class SimpleCounterInServlet. The name of the class should follow the naming convention. Remember to keep the name of the class in such a way that it becomes easy to understand what the program is going to do just by seeing the class name. After making a class define one variable counter which will keep record for how many times the servlet has been accessed. Now use method either doGet() or doPost() to write a logic of the program. Our program logic is simple. We have to just increment the value of the counter by 1. To display the output use the method getWriter() method of the response object which will in turn return the object of the PrintWriter class. Now display the value of the counter.
The code of the program is given below:
The output of the program is given below:
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