public class SampleServlet extends HttpServlet  { 
                         
                          public void doGet( HttpServletRequest request,
HttpServletResponse response ) 
           throws ServletException,IOException { 
 
						    response.setCharacterEncoding("Windows-31J"); 
                             PrintWriter out = response.getWriter(); 
                              out.println("<html><body>"); 
                              
                          Cookie[] c = request.getCookies(); 
                              if ( c != null ) { 
                                for ( int i = 0;i < c.length;i++ ) { 
                                  out.println( c[i].getName() + ":" + c[i].getValue() + "<br>"); 
               				        c[i].setValue("data" + i); 
        response.addCookie(c[i]); 
      
} 
                              } 
                              out.println("</body></html>");   
                          } 
                          } 
                         
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