hey guys im trying to learns database using java her is the simple code
Java Code:
import java.awt.BorderLayout;

import java.awt.Dimension;
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import java.awt.GridLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.util.List;

import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.JTextField;

public class ClassGUIApplication extends JFrame{
	private JPanel centerPnl = new JPanel();
	private JPanel northPnl = new JPanel();
	private JLabel idLbl = new JLabel("Id:");
	private JLabel nameLbl = new JLabel("Name:");
	private JLabel surnameLbl = new JLabel("Surname:");
	private JLabel gradeLbl = new JLabel("Grade:");
	private JTextField idTxt = new JTextField(30);
	private JTextField nameTxt = new JTextField(30);
	private JTextField surnameTxt = new JTextField(30);
	private JTextField gradeTxt = new JTextField(30);
	private JButton insertBtn = new JButton("INSERT");
	private JTable table;
	private StudentDBManager mng = new StudentDBManager();
	private ClassTableModel model;
	public ClassGUIApplication() {
		setTitle("Class Grade Report");
		setLayout(new GridLayout(2,1));
		centerPnl.setLayout(new GridBagLayout());
		GridBagConstraints gc = new GridBagConstraints();
		gc.gridx = 0;
		gc.gridy = 0;
		centerPnl.add(idLbl, gc);
		gc.gridx = 1;
		gc.gridy = 0;
		centerPnl.add(idTxt, gc);
		gc.gridx = 0;
		gc.gridy = 1;
		centerPnl.add(nameLbl, gc);
		gc.gridx = 1;
		gc.gridy = 1;
		centerPnl.add(nameTxt, gc);
		gc.gridx = 0;
		gc.gridy = 2;
		centerPnl.add(surnameLbl, gc);
		gc.gridx = 1;
		gc.gridy = 2;
		centerPnl.add(surnameTxt, gc);
		gc.gridx = 0;
		gc.gridy = 3;
		centerPnl.add(gradeLbl, gc);
		gc.gridx = 1;
		gc.gridy = 3;
		centerPnl.add(gradeTxt, gc);
		gc.gridx = 2;
		gc.gridy = 4;
		centerPnl.add(insertBtn, gc);
		insertBtn.addActionListener(new ActionListener() {
			public void actionPerformed(ActionEvent e) {
				int id = Integer.parseInt(idTxt.getText());
				String name = nameTxt.getText();
				String surname = surnameTxt.getText();
				double grade = Double.parseDouble(gradeTxt.getText());
				Student student = new Student(id,name,surname,grade);
				List<Student> classList = mng.getStudents();
				model = new ClassTableModel(classList);
		northPnl.setLayout(new GridLayout());
		List<Student> classList = mng.getStudents();
		model = new ClassTableModel(classList);
		table = new JTable(model);
		northPnl.add(new JScrollPane(table));
		setPreferredSize(new Dimension(500,500));
	public static void main(String[] args) {
		ClassGUIApplication app = new ClassGUIApplication();

i am having problem with creating jdbc-odbc bridge

here is the ss for Ms Acces java connection problem-bridge.png

program gives this error code:

java.sql.SQLException: [Microsoft][ODBC Driver Manager] The specified DSN contains an architecture mismatch between the Driver and Application
at sun.jdbc.odbc.JdbcOdbc.createSQLException(Unknown Source)
at sun.jdbc.odbc.JdbcOdbc.standardError(Unknown Source)
at sun.jdbc.odbc.JdbcOdbc.SQLDriverConnect(Unknown Source)
at sun.jdbc.odbc.JdbcOdbcConnection.initialize(Unknow n Source)
at sun.jdbc.odbc.JdbcOdbcDriver.connect(Unknown Source)
at java.sql.DriverManager.getConnection(Unknown Source)
at java.sql.DriverManager.getConnection(Unknown Source)
at StudentDBManager.openConnection(StudentDBManager.j ava:21)
at StudentDBManager.<init>(StudentDBManager.java:15)
at ClassGUIApplication.<init>(ClassGUIApplication.jav a:36)
at ClassGUIApplication.main(ClassGUIApplication.java: 102)
hoping your help