Notes

package PoemsFromPensPackage;
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import java.io.*;
public class RegisterPage extends JFrame implements WindowListener {
private LoginPage loginPage;
JPanel[] panel = new JPanel[5];
JTextField[] textF = new JTextField[4];
JButton[] button = new JButton[2];
JLabel label;
public RegisterPage(LoginPage loginPage) {
this.loginPage = loginPage;
this.setBounds(this.loginPage.getX(), this.loginPage.getY(), this.getWidth(), this.getHeight());
loginPage.setVisible(false);
Container cp = getContentPane();
cp.setLayout(new GridLayout(3, 1));
panel[0] = new JPanel(new GridLayout(2, 2));
panel[1] = new JPanel(new GridLayout(2, 2));
panel[2] = new JPanel(new GridLayout(1, 2));
panel[3] = new JPanel(new FlowLayout());
panel[4] = new JPanel(new FlowLayout());
textF[0] = new JTextField("", 26);
textF[1] = new JTextField("", 26);
textF[2] = new JTextField("", 26);
textF[3] = new JTextField("", 26);
button[0] = new JButton("Done");
button[1] = new JButton("Back");
label = new JLabel("Enter your information correctly.");
DoneAction doneListener = new DoneAction();
button[0].addActionListener(doneListener);
BackAction backListener = new BackAction();
button[1].addActionListener(backListener);
panel[0].add(new JLabel("Username:"));
panel[0].add(textF[0]);
panel[0].add(new JLabel("Password:"));
panel[0].add(textF[1]);
panel[1].add(new JLabel("Name:"));
panel[1].add(textF[2]);
panel[1].add(new JLabel("Surname:"));
panel[1].add(textF[3]);
panel[2].add(panel[3]);
panel[2].add(panel[4]);
panel[3].add(label);
panel[4].add(button[0]);
panel[4].add(button[1]);
cp.add(panel[0]);
cp.add(panel[1]);
cp.add(panel[2]);
this.prepareFrame();
}
public void prepareFrame() {
setVisible(true);
setSize(400, 200);
setResizable(false);
setTitle("Poems From Pens - Register Page");
addWindowListener(this);
}
private class BackAction implements ActionListener {
@Override
public void actionPerformed(ActionEvent e) {
loginPage.setBounds(RegisterPage.this.getX(), RegisterPage.this.getY(), loginPage.getWidth(), loginPage.getHeight());
loginPage.setVisible(true);
RegisterPage.this.dispose();
}
}
private class DoneAction implements ActionListener {
@Override
public void actionPerformed(ActionEvent e) {
if (!(textF[0].getText().isEmpty() || textF[1].getText().isEmpty() || textF[2].getText().isEmpty() || textF[3].getText().isEmpty())) {
boolean usernameFound = false;
boolean success = false;
BufferedReader reader = null;
String line = null;
try {
String[] user;
reader = new BufferedReader(new FileReader("users.txt"));
while ((line = reader.readLine()) != null) {
user = line.split(",");
if (user.equals(textF[0].getText())) {
usernameFound = true;
break;
}
}
}
catch (IOException e1) {
e1.printStackTrace();
}
finally {
if (reader != null) {
try {
reader.close();
}
catch (IOException e1) {
e1.printStackTrace();
}
}
}
if (usernameFound == false) {
BufferedWriter writer = null;
try {
writer = new BufferedWriter(new FileWriter("users.txt", true));
writer.write("n" + textF[0].getText() + "," + textF[1].getText() + "," + textF[2].getText() + "," + textF[3].getText());
}
catch (IOException e1) {
e1.printStackTrace();
}
finally {
if (writer != null) {
try {
writer.close();
success = true;
}
catch (IOException e1) {
e1.printStackTrace();
}
}
}
}
if (success == true) {
loginPage.setBounds(RegisterPage.this.getX(), RegisterPage.this.getY(), loginPage.getWidth(), loginPage.getHeight());
loginPage.setVisible(true);
RegisterPage.this.dispose();
}
}
else {
label.setText("Missing information");
}
}
}
@Override
public void windowOpened(WindowEvent e) {
}
@Override
public void windowClosing(WindowEvent e) {
System.exit(0);
}
@Override
public void windowClosed(WindowEvent e) {
}
@Override
public void windowIconified(WindowEvent e) {
}
@Override
public void windowDeiconified(WindowEvent e) {
}
@Override
public void windowActivated(WindowEvent e) {
}
@Override
public void windowDeactivated(WindowEvent e) {
}
}