Codigo de conexion

import java.awt.Color;

import java.sql.Connection;

import java.sql.DriverManager;

import javax.swing.JOptionPane;

import java.sql.*; 

try {

            Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");

            String db="jdbc:odbc:Driver=Microsoft Access Driver (*.mdb, *.accdb);DBQ=e:/Mensajero.accdb";

            Connection cn=DriverManager.getConnection(db,"","");

            JOptionPane.showMessageDialog(rootPane,"Conexion correcta");

            

        } catch (Exception ex) {

            JOptionPane.showMessageDialog(rootPane, "El error es "+ex);

        }