init

WebContent/findname.jsp

@@ -0,0 +1,17 @@
+<%@ page language="java" import="java.util.*" pageEncoding="ISO-8859-1"%>
+<%@ page import="java.sql.*" %>
+<%
+String n=request.getParameter("val");
+if(n.length()>0){
+try{
+Class.forName("oracle.jdbc.driver.OracleDriver");
+Connection con=DriverManager.getConnection("jdbc:oracle:thin:@localhost:1521:xe","system","oracle");
+PreparedStatement ps=con.prepareStatement("select username from quizregister where username='"+n+"'");
+ResultSet rs=ps.executeQuery();
+while(rs.next()){
+out.print("<font style='color:red'>Username already exist</font>");
+}
+con.close();
+}catch(Exception e){e.printStackTrace();}
+}//end of if
+%>