Login Panel : Dialog « Swing Components « Java

Login Panel


 * Class: LoginPane
 * Description: A simple class to get user's loginname and password.
 * NOTE: This class is not very secure!
 * @author Le Cuong Nguyen
//package atnf.atoms.mon.util;

import java.awt.GridLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

import javax.swing.JButton;
import javax.swing.JCheckBox;
import javax.swing.JDialog;
import javax.swing.JLabel;
import javax.swing.JPasswordField;
import javax.swing.JTextField;

public class LoginPane extends JDialog implements ActionListener {
  String itsUsername = "";
  String itsPassword = "";
  boolean itsFirst = true;
  boolean itsKeep = false;
  JTextField itsUserField = new JTextField(15);
  JPasswordField itsPassField = new JPasswordField(15);
  JCheckBox itsKeepBox = new JCheckBox("Save details:", false);
  boolean itsInit = false;

  public LoginPane() {
    getContentPane().setLayout(new GridLayout(3, 2));
    getContentPane().add(new JLabel("Username:"));
    getContentPane().add(new JLabel("Password"));
    JButton submit = new JButton("done");

  public String[] getLogin() {
    if (!itsKeep && !itsFirst) {
      return null;
    if (!itsInit) {
      return null;
    itsFirst = false;
    String[] res = new String[2];
    res[0] = itsUsername;
    res[1] = itsPassword;
    if (!itsKeep) {
      itsUsername = "";
      itsPassword = "";
    return res;

  public void actionPerformed(ActionEvent e) {
    itsUsername = itsUserField.getText();
    itsPassword = new String(itsPassField.getPassword());
    itsKeep = itsKeepBox.isSelected();
    itsInit = true;


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