Need help setting up JDBC with mySQL and Netbeans

Question

I've successfully got mySQL up and running and created a few simple test databases. I've been following the instructions on this website (http://www.stardeveloper.com/articles/display.html?article=2003090401&page=1 ) to get JDBC working but have had little luck.
I've downloaded JDBC from mySQL website, extracted the mysql-connector-java-3.1.13-bin.jar file and changed the class path to :
C:\Program Files\Java\jre1.5.0_06\lib\ext\mysql-connector-java-3.1.13-bin
which is where I placed the .jar file.
I then used the following code provided on stardeveloper.com to test a connection with the test database.
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.SQLException;
public class JdbcExample2 {
  public static void main(String args[]) {
    Connection con = null;
    try {
      Class.forName("com.mysql.jdbc.Driver").newInstance();
      con = DriverManager.getConnection("jdbc:mysql:///test",
        "root", "secret");
      if(!con.isClosed())
        System.out.println("Successfully connected to " +
          "MySQL server using TCP/IP...");
    } catch(Exception e) {
      System.err.println("Exception: " + e.getMessage());
    } finally {
      try {
        if(con != null)
          con.close();
      } catch(SQLException e) {}
}It compiles but when run I get the error message :
java.lang.NoClassDefFoundError: testdatabase/JdbcExample2
Exception in thread "main"I assume this means that my classpath isn't setup correctly but I have no idea what's up and how to correct it.
Can someone PLEASE tell me how to setup jdbc and what I've done wrong.
Thanks in advance :)

Answer 1

Thanks for your reply. I've made some progress but I'm still having problems.
In mySQL I created a new user called uraknai with password n0121429 and granted them access to a test database I created called pet.
Then, in netbeans, I clicked the Runtime tab, clicked Databases and rightclicked Drivers and clicked Add Driver. I then added the driver mysql-connector-java-3.1.13-bin.jar. I then right clicked the newly added driver and selected the connect using option. I filled in the appropriate boxes clicked ok and it connected successfully.
Then, under the project tab, I right clicked the project name, clicked properties then clicked Libraries and added the .jar file mysql-connector-java-3.1.13-bin.jar
I then ran the following code to test the connection to the database:
import java.sql.*;
public class ConnectionTest {
    public ConnectionTest() {
    public static void main(String[] args)
        System.out.println("BEGIN CONNECTION TEST");
        Connection conn = null;
        try
               String userName = "uraknai";
               String password = "n0121429";
               String url = "jdbc:mysql://localhost/pet";
               Class.forName ("com.mysql.jdbc.Driver").newInstance ();
               conn = DriverManager.getConnection (url, userName, password);
               System.out.println ("Database connection established");
         catch (Exception e)
               System.err.println ("Cannot connect to database server");
         finally
               if (conn != null)
                   try
                       conn.close ();
                       System.out.println ("Database connection terminated");
                   catch (Exception e) { /* ignore close errors */ }
}and get the message:
java.lang.NoClassDefFoundError: math/ConnectionTest
Exception in thread "main"
Java Result: 1when I run the code.
Can someone explin what I've done wrong and how to fix the problem.
Cheers.