import javax.servlet.*;
import javax.servlet.http.*;

public class MyServlet extends HttpServlet {
  public void doPost(HttpServletRequest req, HttpServletResponse res) {

    Cookie cookie = new Cookie ("myCookie", "theCookieValue");

    // Expire in five minutes (5 * 60)
    cookie.setMaxAge( 300 );
    
    // Expire after the browser is closed
    // cookie.setMaxAge( -1 );

    // Expire right now
    // cookie.setMaxAge( 0 );

    }
    
  public void doGet(HttpServletRequest req, HttpServletResponse res) {
    doPost(req, res);
    }
    
}