Java by API/javax.servlet.http/HttpServlet

HttpServlet: destroy()

import java.io.BufferedReader;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.FileWriter;
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 MainServlet extends HttpServlet {
  int count;
  public void init() throws ServletException {
    FileReader fileReader = null;
    BufferedReader bufferedReader = null;
    try {
      fileReader = new FileReader("InitDestroyCounter.initial");
      bufferedReader = new BufferedReader(fileReader);
      String initial = bufferedReader.readLine();
      count = Integer.parseInt(initial);
      return;
    } catch (Exception ignored) {
    }  
    finally {
      try {
        if (bufferedReader != null) {
          bufferedReader.close();
        }
      } catch (IOException ignored) {
      }
    }
    String initial = getInitParameter("initial");
    try {
      count = Integer.parseInt(initial);
      return;
    } catch (NumberFormatException ignored) {
    } 
    count = 0;
  }
  public void doGet(HttpServletRequest req, HttpServletResponse res) throws ServletException,
      IOException {
    res.setContentType("text/plain");
    PrintWriter out = res.getWriter();
    count++;
    out.println("Since the beginning, this servlet has been accessed " + count + " times.");
  }
  public void destroy() {
    saveState();
  }
  public void saveState() {
    // Try to save the accumulated count
    FileWriter fileWriter = null;
    PrintWriter printWriter = null;
    try {
      fileWriter = new FileWriter("InitDestroyCounter.initial");
      printWriter = new PrintWriter(fileWriter);
      printWriter.println(count);
      return;
    } catch (IOException e) { // problem during write
      // Log the exception. See Chapter 5.
    } finally {
      // Make sure to close the file
      if (printWriter != null) {
        printWriter.close();
      }
    }
  }
}

HttpServlet: doGet(HttpServletRequest req, HttpServletResponse resp)

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 MainServlets extends HttpServlet {
  int count;
  public void init() throws ServletException {
    String initial = getInitParameter("initial");
    try {
      count = Integer.parseInt(initial);
    } catch (NumberFormatException e) {
      count = 0;
    }
  }
  public void doGet(HttpServletRequest req, HttpServletResponse res) throws ServletException,
      IOException {
    res.setContentType("text/plain");
    PrintWriter out = res.getWriter();
    count++;
    out.println("Since loading (and with a possible initialization");
    out.println("parameter figured in), this servlet has been accessed");
    out.println(count + " times.");
  }
}