The Cookie Technology

create cookies with Java

import javax.servlet.*;
import javax.servlet.http.*;
import java.io.*;

public class CookieExample extends HttpServlet
{
    public void doPost( HttpServletRequest request, HttpServletResponse response )
              throws ServletException, IOException
    {
        PrintWriter output;

        Cookie c = new Cookie( "username", "WSB" );
        c.setMaxAge( 120 );
        response.addCookie( c );

        response.setContentType( "text/html" );
        output = response.getWriter( );
        output.println( "<HTML><HEAD><TITLE>Java cookie example</TITLE></HEAD>" );
        output.println( "<BODY>I just sent you a cookie!</BODY></HTML>" );
        output.close( );
    }
}

Notes

The cookie class is in: javax.servlet.http.Cookie
Other relevant class and interfaces:

javax.servlet.http.HttpServlet
javax.servlet.http.HttpServletRequest
javax.servlet.http.HttpServletResponse
javax.servlet.Servlet

For more information, visit <http://java.sun.com/products/servlet/2.1/api/Package-javax.servlet.http.html>