Hi,
I am creating the updateuser.jsp page. For that I create search.jsp where one can serch users and after submitting this page.it should display the updateuser.jsp page where I can update the details of user. Here is my code of searchuser.jsp:

<% Connection connection = null;
        Statement st = null;
        ResultSet rs = null;
        Class.forName("com.mysql.jdbc.Driver");
        Connection con = DriverManager.getConnection("jdbc:mysql://localhost:3306/mynewdatabase","root", "root123");
    ///  st=connection.createStatement();/// 
           try {
        rs = st.executeQuery("Select * from user order by useid Asc");
                           while (rs.next())
                                 {
                      %>
                                <option value = "<%=rs.getString("userid")%>" >
                                <%=rs.getString("emailid") + " "+rs.getString("groupid")%>
                                        </option>
                      <%
                           }

                       }
                       finally
                       {
                           if (rs != null)
                           {
                               rs.close();
                               rs = null;
                           }
                           if (st != null)
                           {
                               st.close();
                               st = null;
                           }

                       }
                   %>

but shows error at above marked line as:

java.lang.NullPointerException
org.apache.jsp.searchuser_jsp._jspService(searchuser_jsp.java:91)

Well, whether it is right way to retrive data and shows to user?
Any suggestion is highly appreciated.
Thanks and Regards
Haresh

Of course it will, you declares connections as

Connection con = DriverManager.getConnection("jdbc:mysql://localhost:3306/mynewdatabase","root", "root123");

but you trying to call it as

st=connection.createStatement();

You should seriously look into some materials on Java web development Java EE5 Tutorial and JDBC Database Access may help you too. As I said previously accessing database from JSP is bad thing to do

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