Problem with database connectivity

Question

Hi guys,
I'm having a problem with database connectivity . I'm using the mySQL database & org.gjt.mm.mysql driver.
I've kept the org folder under the directory where the Database.java program is residing .
My program is as follows:
import java.sql.*;
public class Database
     Connection con;
     public void connect()
          System.out.println("In connect.");
     public Connection connectDB(String username,String password,String database)
          try
               Class.forName("org.gjt.mm.mysql.jdbc.Driver");
               String url="jdbc:mysql:"+database;
               con=DriverManager.getConnection(url,username,password);
          catch(SQLException e)
               System.out.println("SQL Exception caught:"+e);     
          catch(Exception e)
               System.out.println("Exception e caught:"+e);     
          return con;
     public static void main(String args[])
          try
          Connection c;
          Database db=new Database();
          c=db.connectDB("root","","//192.168.0.2/squid");
          System.out.println("Connection created.");
          c.close();
          catch(Exception e)
               System.out.println("Exception caught:"+e);     
It gets compiled but gives the following error when run.
Exception e caught:java.lang.ClassNotFoundException: org.gjt.mm.mysql.jdbc.Driver
Connection created.
Exception caught:java.lang.NullPointerException
I don't know why the class is not found.Pl . help me rectify my mistake.Is there any other path to be set?
Thanks.

Answer 1

You need to run it with the JDBC driver in the classpath
java -classpath .;[mySqlJdbcDriver.jar] Database