puji decrept

class Program
{
static void Main(string[] args)
{
int x = findInverse(7);


string w = "FDYMHQDCFIDJBIPWDKR";
string r = Decript(w, x);

Console.WriteLine(r);

Console.ReadLine();
}

static int findInverse(int n)
{
for (int i = 1; i < 500; i++)
{
int t = (26 * i) + 1;
int chkNum = t / n;
int chk = t % n;
if (chk == 0)
{
return chkNum;
}
}
return 0;
}

static string Decript(string word, int a)
{
string wrd = "";

for (int i = 0; i < word.Length; i++)
{
char c = word[i];
string t = DecriptString(c, a);
wrd = wrd + t;
}

return wrd;
}

static string DecriptString(char s, int d)
{
int chr = getNum(s);
int recover = d * (chr - 3) % 26;
string rslt = getChar(recover);
return rslt;
}

static string getChar(int i)
{
switch (i)
{
case 0: return "A"; break;
case 1: return "B"; break;
case 2: return "C"; break;
case 3: return "D"; break;
case 4: return "E"; break;
case 5: return "F"; break;
case 6: return "G"; break;
case 7: return "H"; break;
case 8: return "I"; break;
case 9: return "J"; break;
case 10: return "K"; break;
case 11: return "L"; break;
case 12: return "M"; break;
case 13: return "N"; break;
case 14: return "O"; break;
case 15: return "P"; break;
case 16: return "Q"; break;
case 17: return "R"; break;
case 18: return "S"; break;
case 19: return "T"; break;
case 20: return "U"; break;
case 21: return "V"; break;
case 22: return "W"; break;
case 23: return "X"; break;
case 24: return "Y"; break;
case 25: return "Z"; break;
}
return "";
}

static int getNum(char i)
{
switch (i)
{
case 'A': return 0; break;
case 'B': return 1; break;
case 'C': return 2; break;
case 'D': return 3; break;
case 'E': return 4; break;
case 'F': return 5; break;
case 'G': return 6; break;
case 'H': return 7; break;
case 'I': return 8; break;
case 'J': return 9; break;
case 'K': return 10; break;
case 'L': return 11; break;
case 'M': return 12; break;
case 'N': return 13; break;
case 'O': return 14; break;
case 'P': return 15; break;
case 'Q': return 16; break;
case 'R': return 17; break;
case 'S': return 18; break;
case 'T': return 19; break;
case 'U': return 20; break;
case 'V': return 21; break;
case 'W': return 22; break;
case 'X': return 23; break;
case 'Y': return 24; break;
case 'Z': return 25; break;
}
return -1;
}
}

Javabean

Javabean

Index.html

<a href=”Home”>view home</a>

Home.java

/*

 * To change this license header, choose License Headers in Project Properties.

 * To change this template file, choose Tools | Templates

 * and open the template in the editor.

 */

package pac;

import java.io.IOException;

import java.io.PrintWriter;

import javax.ejb.EJB;

import javax.servlet.ServletException;

import javax.servlet.annotation.WebServlet;

import javax.servlet.http.HttpServlet;

import javax.servlet.http.HttpServletRequest;

import javax.servlet.http.HttpServletResponse;

/**

 *

 * @author Madhura

 */

@WebServlet(name = "Home", urlPatterns = {"/Home"})

public class Home extends HttpServlet {

    @EJB

    private SudentManager sudentManager;

   

    /**

     * Processes requests for both HTTP <code>GET</code> and <code>POST</code>

     * methods.

     *

     * @param request servlet request

     * @param response servlet response

     * @throws ServletException if a servlet-specific error occurs

     * @throws IOException if an I/O error occurs

     */

    protected void processRequest(HttpServletRequest request, HttpServletResponse response)

            throws ServletException, IOException {

        response.setContentType("text/html;charset=UTF-8");

       

        Integer id = 0;

        String name = null;

        Integer age = 0;

        Integer state = 0;

        if (request.getParameter("id") != null) {

            id = Integer.parseInt(request.getParameter("id"));

        }

        if (request.getParameter("name") != null) {

            name = request.getParameter("name");

        }

        if (request.getParameter("age") != null) {

            age = Integer.parseInt(request.getParameter("age"));

        }

        if ((id != 0) && (name != null) && (age != 0)) {

            try {

                // here we create NewsEntity, that will be sent in JMS message

                Student p = new Student();

                p.setId(id);

                p.setName(name);

                p.setAge(age);

                sudentManager.createPerson(p);

                state = 0;

                response.sendRedirect("sucess");

            } catch (Exception e) {

                state = 1;

            }

        }

       

        try (PrintWriter out = response.getWriter()) {

            /* TODO output your page here. You may use following sample code. */

            out.println("<!DOCTYPE html>");

            out.println("<html>");

            out.println("<head>");

            out.println("<title>Servlet Home</title>");           

            out.println("</head>");

            out.println("<body>");

           

            out.println("<form>");

            out.println("ID:<input type='text' name='id' id='id'/><br/><br/>");

            out.println("Name:<input type='text' name='name' id='name'/><br/><br/>");

            out.println("Age:<input type='text' name='age' id='age'/><br/><br/>");

            out.println("<button type='submit'>Add Person</button><br/>");

            out.println("</form>");

           

            out.println("</body>");

            out.println("</html>");

        }

    }

}