Why won`t this complie?

Question

I get "Main.java": Error #: 202 : 'class' or 'interface' expected at line 49, column 8.For the setupLoginPanel().
I get "Main.java": Error #: 202 : 'class' or 'interface' expected at line 158, column 18.For the login().
This is for a Certificate project please help me correct these errors.
Thanks!!
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import java.sql.*;
import java.io.*;
public class Main extends JFrame implements main_interface{
final static String genexception = "GENERAL EXCEPTION";
final static String driver      = "sun.jdbc.odbc.JdbcOdbcDriver";
final static String url      = "jdbc:odbc:AddBKTAFE";
final static String Login      = "LOG-IN";
final static String tab_login      = "Log-in";
final static String relogin      = "Log-in failed! Please relog-in!";
final static String error      = "ERROR";
JPanel panell;
JTabbedPane tpane = new JTabbedPane();
GridBagConstraints constraints = new GridBagConstraints();
GridBagLayout layout = new GridBagLayout ();
Font labelFont = new Font("Arial",Font.PLAIN,12);
Font buttonFont = new Font("Arial",Font.BOLD,13);
JButton btLogin      = new JButton (Login );
JPasswordField jpPassword           = new JPasswordField(10 );
JTextField tfUser           = new JTextField("",10 );
JLabel lbUser           = new JLabel("Enter User ID: " );
JLabel lbPassword           = new JLabel("Enter Password: ");
Main app;
// public Login log = new Login();
JTextField tfUser;
public Main(){
System.out.println("loading.......please wait.");
app.setSize(900,385);
setupLoginPanel();
app.setVisible(true);
app.tfUser.requestFocus();
app.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
//--------------------Start main------------------------------------------------>>>
     public static void main(String args[]){
          Main app = new Main();
//--------------------End main-------------------------------------------------->>>
public void setupLoginPanel(){
// set application title
setTitle("Address Book");
// center screen
setLocation((Toolkit.getDefaultToolkit().getScreenSize().width
- getWidth())/2,
(Toolkit.getDefaultToolkit().getScreenSize().height
- getHeight())/2);
String sql = ""; // Used to store sql statements
Container cntr = getContentPane();
JPanel panel1 = new JPanel();
// set screen border
panel1.setBorder(BorderFactory.createTitledBorder(
BorderFactory.createEtchedBorder(),""));
// add tabbedpane to panel
tpane.addTab(tab_login, panel1);
// add panel to container
cntr.add(tpane);
// setup layout as GridBagLayout
constraints.insets = new Insets(2,2,2,2);
panel1.setLayout(layout);
// setup User ID label in display area
lbUser.setFont(labelFont);
constraints.ipadx = 2;
constraints.ipady = 2;
constraints.gridx = 0;
constraints.gridy = 0;
constraints.anchor = GridBagConstraints.WEST;
layout.setConstraints(lbUser, constraints);
panel1.add(lbUser);
// setup User ID input field in display area
tfUser.setFont(labelFont);
constraints.ipadx = 2;
constraints.ipady = 2;
constraints.gridx = 1;
constraints.gridy = 0;
constraints.fill = GridBagConstraints.HORIZONTAL;
layout.setConstraints(tfUser, constraints);
panel1.add(tfUser);
// setup Password label in display area
lbPassword.setFont(labelFont);
constraints.ipadx = 2;
constraints.ipady = 2;
constraints.gridx = 0;
constraints.gridy = 1;
constraints.anchor = GridBagConstraints.WEST;
layout.setConstraints(lbPassword, constraints);
panel1.add(lbPassword);
// setup Password input field in display area
jpPassword.setEchoChar('*');
constraints.ipadx = 2;
constraints.ipady = 2;
constraints.gridx = 1;
constraints.gridy = 1;
layout.setConstraints(jpPassword, constraints);
panel1.add(jpPassword);
// setup Login button in display area
btLogin.setFont(buttonFont);
constraints.anchor = GridBagConstraints.WEST;
constraints.gridy = 3;
constraints.gridx = 1;
layout.setConstraints(btLogin, constraints);
panel1.add(btLogin);
// setup login button listener
btLogin.addActionListener(new ButtonHandler());
// allow ALT L to press login button
btLogin.setMnemonic('l');
//--------------------End setupLoginPanel()------------------------------------->>
//--------------------Start ButtonHandler--------------------------------------->>>
// Action listener for the buttons on each screen
class ButtonHandler implements ActionListener{
public void actionPerformed(ActionEvent e){
// get the label of the button
String action = e.getActionCommand();
if (action!=null){
if(action==Login){
// call method accessDB()
login();
// if login error, set cursor to user name input field
tfUser.requestFocus();
//--------------------End ButtonHandler----------------------------------------->>>
//--------------------Start login()--------------------------------------------->>>
// Validate user input from the login screen based on information from login
// table (note: manually create/update your login from table LOGIN).
public void login(){
String user = tfUser.getText();
user = user.trim();
String password = jpPassword.getText();
String sql = "SELECT * FROM persons WHERE username='"+
user+"' AND password='"+password+"'";
try{
// load MS Access driver
Class.forName(driver);
}catch(java.lang.ClassNotFoundException ex){
JOptionPane.showMessageDialog(null,ex.getMessage(), error ,
JOptionPane.PLAIN_MESSAGE);
try{
// setup connection to DBMS
Connection conn = DriverManager.getConnection(url);
// create statement
Statement stmt = conn.createStatement();
// execute sql statement
stmt.execute(sql);
ResultSet rs = stmt.getResultSet();
boolean recordfound = rs.next();
if (recordfound){
System.out.println("Login succeeded!");
/*     tpane.removeTabAt(0);
initComboBoxes();
showPane1();
showPane2();
showPane3();
else{
// username/password invalid
JOptionPane.showMessageDialog(null,relogin, error,
JOptionPane.INFORMATION_MESSAGE);
//clear login and password fields
tfUser.setText ("");
jpPassword.setText("");
conn.close();
}catch(Exception ex){
JOptionPane.showMessageDialog(null,ex.getMessage(), genexception,
JOptionPane.INFORMATION_MESSAGE);
//--------------------End login()----------------------------------------------->>>

Answer 1

you had a wrong } at line 47
now it should work :
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import java.sql.*;
import java.io.*;
public class Main
extends JFrame
implements main_interface {
final static String genexception = "GENERAL EXCEPTION";
final static String driver = "sun.jdbc.odbc.JdbcOdbcDriver";
final static String url = "jdbc:odbc:AddBKTAFE";
final static String Login = "LOG-IN";
final static String tab_login = "Log-in";
final static String relogin = "Log-in failed! Please relog-in!";
final static String error = "ERROR";
JPanel panell;
JTabbedPane tpane = new JTabbedPane();
GridBagConstraints constraints = new GridBagConstraints();
GridBagLayout layout = new GridBagLayout();
Font labelFont = new Font("Arial", Font.PLAIN, 12);
Font buttonFont = new Font("Arial", Font.BOLD, 13);
JButton btLogin = new JButton(Login);
JPasswordField jpPassword = new JPasswordField(10);
JTextField tfUser = new JTextField("", 10);
JLabel lbUser = new JLabel("Enter User ID: ");
JLabel lbPassword = new JLabel("Enter Password: ");
Main app;
// public Login log = new Login();
JTextField tfUser;
public Main() {
System.out.println("loading.......please wait.");
app.setSize(900, 385);
setupLoginPanel();
app.setVisible(true);
app.tfUser.requestFocus();
app.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
//--------------------Start main------------------------------------------------>>>
public static void main(String args[]) {
Main app = new Main();
//--------------------End main-------------------------------------------------->>>
public void setupLoginPanel() {
// set application title
setTitle("Address Book");
// center screen
setLocation( (Toolkit.getDefaultToolkit().getScreenSize().width
- getWidth()) / 2,
(Toolkit.getDefaultToolkit().getScreenSize().height
- getHeight()) / 2);
String sql = ""; // Used to store sql statements
Container cntr = getContentPane();
JPanel panel1 = new JPanel();
// set screen border
panel1.setBorder(BorderFactory.createTitledBorder(
BorderFactory.createEtchedBorder(), ""));
// add tabbedpane to panel
tpane.addTab(tab_login, panel1);
// add panel to container
cntr.add(tpane);
// setup layout as GridBagLayout
constraints.insets = new Insets(2, 2, 2, 2);
panel1.setLayout(layout);
// setup User ID label in display area
lbUser.setFont(labelFont);
constraints.ipadx = 2;
constraints.ipady = 2;
constraints.gridx = 0;
constraints.gridy = 0;
constraints.anchor = GridBagConstraints.WEST;
layout.setConstraints(lbUser, constraints);
panel1.add(lbUser);
// setup User ID input field in display area
tfUser.setFont(labelFont);
constraints.ipadx = 2;
constraints.ipady = 2;
constraints.gridx = 1;
constraints.gridy = 0;
constraints.fill = GridBagConstraints.HORIZONTAL;
layout.setConstraints(tfUser, constraints);
panel1.add(tfUser);
// setup Password label in display area
lbPassword.setFont(labelFont);
constraints.ipadx = 2;
constraints.ipady = 2;
constraints.gridx = 0;
constraints.gridy = 1;
constraints.anchor = GridBagConstraints.WEST;
layout.setConstraints(lbPassword, constraints);
panel1.add(lbPassword);
// setup Password input field in display area
jpPassword.setEchoChar('*');
constraints.ipadx = 2;
constraints.ipady = 2;
constraints.gridx = 1;
constraints.gridy = 1;
layout.setConstraints(jpPassword, constraints);
panel1.add(jpPassword);
// setup Login button in display area
btLogin.setFont(buttonFont);
constraints.anchor = GridBagConstraints.WEST;
constraints.gridy = 3;
constraints.gridx = 1;
layout.setConstraints(btLogin, constraints);
panel1.add(btLogin);
// setup login button listener
btLogin.addActionListener(new ButtonHandler());
// allow ALT L to press login button
btLogin.setMnemonic('l');
//--------------------End setupLoginPanel()------------------------------------->>
//--------------------Start ButtonHandler--------------------------------------->>>
// Action listener for the buttons on each screen
class ButtonHandler
implements ActionListener {
public void actionPerformed(ActionEvent e) {
// get the label of the button
String action = e.getActionCommand();
if (action != null) {
if (action == Login) {
// call method accessDB()
login();
// if login error, set cursor to user name input field
tfUser.requestFocus();
//--------------------End ButtonHandler----------------------------------------->>>
//--------------------Start login()--------------------------------------------->>>
// Validate user input from the login screen based on information from login
// table (note: manually create/update your login from table LOGIN).
public void login() {
String user = tfUser.getText();
user = user.trim();
String password = jpPassword.getText();
String sql = "SELECT * FROM persons WHERE username='" +
user + "' AND password='" + password + "'";
try {
// load MS Access driver
Class.forName(driver);
catch (java.lang.ClassNotFoundException ex) {
JOptionPane.showMessageDialog(null, ex.getMessage(), error,
JOptionPane.PLAIN_MESSAGE);
try {
// setup connection to DBMS
Connection conn = DriverManager.getConnection(url);
// create statement
Statement stmt = conn.createStatement();
// execute sql statement
stmt.execute(sql);
ResultSet rs = stmt.getResultSet();
boolean recordfound = rs.next();
if (recordfound) {
System.out.println("Login succeeded!");
/* tpane.removeTabAt(0);
initComboBoxes();
showPane1();
showPane2();
showPane3();
else {
// username/password invalid
JOptionPane.showMessageDialog(null, relogin, error,
JOptionPane.INFORMATION_MESSAGE);
//clear login and password fields
tfUser.setText("");
jpPassword.setText("");
conn.close();
catch (Exception ex) {
JOptionPane.showMessageDialog(null, ex.getMessage(), genexception,
JOptionPane.INFORMATION_MESSAGE);
//--------------------End login()----------------------------------------------->>>