JDBC connection to Oracle problem

[Goochable]

public class blackjack_sql implements Serializable
{
public static Connection connect()
{

String url = "jdbcracle:thin:@127.0.0.1:1521EVELOP";
Connection blackjack_connect = null;

try
{
Class.forName("oracle.jdbc.driver.OracleDriver");
} /* End try */

catch(java.lang.ClassNotFoundException e)
{
System.err.print("ClassNotFoundException: ");
System.err.println(e.getMessage());
return null;
} /* End catch */

try
{
blackjack_connect = DriverManager.getConnection(url,"blackjack", "mobliss");
return(blackjack_connect);
} /* End try */

catch(SQLException sqlerr)
{
System.err.println("SQLException: " + sqlerr.getMessage());
return null;
}

} /* End connect */


public static void disconnect(Connection blackjack_connect)
{
if(blackjack_connect != null)
{
try
{
blackjack_connect.close();
blackjack_connect=null;
}
catch(SQLException sqlerr)
{
System.err.println("SQLException: " + sqlerr.getMessage());
}
} /* End if */
} /* End disconnect */