whenever i use "oracle.jdbc.OracleDriver" is shows classnotfoundexception

[yeshvanth]

hi i got windows 7 as os and orcle 11g installed in my pc and i set classpath for "ojdbc5.jar" file but still whenever i use "oracle.jdbc.OracleDriver" it shows the following

exception in thread main classnotfound exception for the following code

import java.sql.*;
class One
{
public static void main(String args[])throws Exception
{
Class.forName("oracle.jdbc.driver.OracleDriver");
Connection con=DriverManager.getConnection("jdbc:oracle:thin:@localhost:1521:server","scott","tiger");
System.out.println(";aslkdf");
con.close();
}}

my classpath is "C:\Program Files\Java\jdk1.6.0\lib;C:\app\vijay\product\11.2. 0\dbhome_2\jdbc\lib\ ojdbc5.jar;"

hope i my problem gets solved