suppose this if form1.jsp in which i am going to display records from database
out.println("<tr><td>"+"<input type='checkbox' id='r1' value="+r+" name='test' >"+"</td><td>"+r+"</td><td>"+pname+"</td><td>"+add1+"</td><td>"+add2+"</td><td>"+land+"</td><td>"+geon+"</td><td>"+geoe+"</td><td>"+plan+"</td>");

 out.println("<td><select name='routecombo'id='routecombo'"+i+"'>");
  ResultSet rs1=ps2.executeQuery("select Route_id from table1");
  while(rs1.next())
  {
  s1=rs1.getString(1);
  out.println("<option value='"+s1+"'>"+s1+"</option>");
  }

 out.println("</select>");
 out.println("</td>");


  out.println("</tr>");


now this is form2.jsp in which i am updating values which is selected from form1.jsp
String languages="";
String box="";
String box1="";
String lang[]=request.getParameterValues("test");
String txt[]=request.getParameterValues("routecombo");

for(k=1;k<=lang.length;k++)
            {
                System.out.println("k: "+k);
                languages+=lang[k-1]+" ";
            }
               System.out.println("chk="+languages);
               int j=0;
                for(t=0;t<txt.length;t++){

                    box+=txt[t];
                    //box1+=txt1[t];
                    //System.out.println("txt="+box);
                    if(!((txt[t]).equals("")))
                    {
                        System.out.println("Route ID");
                        System.out.println(t);
                        System.out.println(txt[t]);
                        String query="update PROFILE set Route_Id='"+txt[t]+"' where Proid='"+lang[j]+"'";
                        System.out.println(query);
                        i=st.executeUpdate(query);
                        j++;
                    }
 System.out.println("txt="+box);
                //System.out.println("txt1="+box1);

        out.println("Data is successfully inserted into database.");
        }
        catch(Exception e){
            e.printStackTrace();
        System.out.println(e);
        }