Update database values using JSP

<%@page import="java.sql.*"%>

<%

try{

    Class.forName("com.mysql.jdbc.Driver").newInstance();

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

      Statement st = con.createStatement(); 

      int c = st.executeUpdate("update data set name='John',address='Delhi' where id=1");

      out.println("Data is updated successfully");

      st.close();

      con.close();        

    }

    catch(Exception e){

    System.out.println(e);

    }

%>