Question

In: Computer Science

I need to create a servlet that takes in an input that will do the following...

I need to create a servlet that takes in an input that will do the following calculations.

  1. If the input number is a prime, just output a message showing that it is a prime;
  2. If the input number is not a prime and it is an odd integer, write it as a product of two smaller odd integers;
  3. If the input number is not a prime and it is an even integer, first extract the largest power of 2, then for the remaining odd number, try to factorize it if you can. For your output, you give the power of 2 as one number and one more factor if this factor is a prime, or two more factors if you can still factorize the odd number after extracting the power of 2.

Solutions

Expert Solution

// suppose we have a simple html form which take input number

<html>
<body>
<form action="MyServlet" method="Get">
Enter the Number:<input type="text" name="n1"/><br/>
<input type="submit" value="submit"/>
</form>
</body>
</html>

// servlet program

import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

public class MyServlet extends HttpServlet {

protected void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
response.setContentType("text/html;charset=UTF-8");
PrintWriter out = response.getWriter();
String x=request.getParameter("n1");       //take input from html
int n=Integer.parseInt(x);     // parse string data into integer


int i=1,fact=1;

        int m=n/2
      for(i=2;i<=m;i++)
        {
          if(n%i==0)
            {
                printf("Number is not prime");
                flag=1;

                if(n/2==0)

               {

                 printf("number is even");

               }

                else

                {

                  printf("number is odd")

                }
                break;
            }
        }
       if(flag==0)
       printf("Number is prime");   
       }
}
}

venereology answered 7 months ago
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