class not found exception

Hi all;
Well i am getting exception when loading driver.
java.lang.ClassNotFoundException: oracle.jdbc.driver.OracleDriver
The program is
import java.sql.*;
import java.io.*;
import oracle.jdbc.driver.OracleDriver;
public class A
{
public static void main(String args[]){
Connection con=null;
Statement stmt=null;
try{
Class.forName("oracle.jdbc.driver.OracleDriver");
//con=DriverManager.getConnection("jdbc

racle:thin:@JAWWAD:1521

EMREP","scott","tiger");
}catch(ClassNotFoundException e){
System.out.println(e);
}
//catch(SQLException e){
//System.out.println("The Sql En caught is");
//}
System.out.println("Success");
}
}
I have putten the class12.jar in g:\jdk1.3\jre\lib\ext\classes12.jar
Also have putten the oracle.jdbc.driver.OracleDriver in the A.java path but no way found.
Can any body tell where i am wong please.

When using the "jre/lib/ext" method you need to be careful that you are putting your jars in the right place. On Windows systems, for example, there is often another "JRE" in Program Files, which may be used in preference to the one where you have put your jar file.
If you are running on a Windows system, please do a "find" on all your local disks to see if you have more than one such dirtectory. Of you have, try placing your Oracle jar in there as well.
Also, your "import" statement for the Oracle driver is not necessary, and may actually be wrong. When you create a class from it's name, you should not "import" it.