class FileSelectorJframe extends JFrame implements FileSelectorView, ActionListener {

  /**
   * Default serial version ID.
   */
  private static final long serialVersionUID = 1L;

  /**
   * The "OK" button for loading the file.
   */
  private final JButton ok;

  /**
   * The cancel button.
   */
  private final JButton cancel;

  /**
   * The text field for giving the name of the file that we want to open.
   */
  private final JTextField input;

  /**
   * A text area that will keep the contents of the file opened.
   */
  private final JTextArea area;

  /**
   * The Presenter component that the frame will interact with.
   */
  private FileSelectorPresenter presenter;

  /**
   * The name of the file that we want to read it's contents.
   */
  private String fileName;

  /**
   * Constructor.
   */
  public FileSelectorJframe() {
    super("File Loader");
    this.setDefaultCloseOperation(EXIT_ON_CLOSE);
    this.setLayout(null);
    this.setBounds(100, 100, 500, 200);

    /*
     * Add the panel.
     */
    var panel = new JPanel();
    panel.setLayout(null);
    this.add(panel);
    panel.setBounds(0, 0, 500, 200);
    panel.setBackground(Color.LIGHT_GRAY);

    /*
     * Add the info label.
     */
    var info = new JLabel("File Name :");
    panel.add(info);
    info.setBounds(30, 10, 100, 30);

    /*
     * Add the contents label.
     */
    var contents = new JLabel("File contents :");
    panel.add(contents);
    contents.setBounds(30, 100, 120, 30);

    /*
     * Add the text field.
     */
    this.input = new JTextField(100);
    panel.add(input);
    this.input.setBounds(150, 15, 200, 20);

    /*
     * Add the text area.
     */
    this.area = new JTextArea(100, 100);
    var pane = new JScrollPane(area);
    pane.setHorizontalScrollBarPolicy(HORIZONTAL_SCROLLBAR_AS_NEEDED);
    pane.setVerticalScrollBarPolicy(VERTICAL_SCROLLBAR_AS_NEEDED);
    panel.add(pane);
    this.area.setEditable(false);
    pane.setBounds(150, 100, 250, 80);

    /*
     * Add the OK button.
     */
    this.ok = new JButton("OK");
    panel.add(ok);
    this.ok.setBounds(250, 50, 100, 25);
    this.ok.addActionListener(this);

    /*
     * Add the cancel button.
     */
    this.cancel = new JButton("Cancel");
    panel.add(this.cancel);
    this.cancel.setBounds(380, 50, 100, 25);
    this.cancel.addActionListener(this);

    this.presenter = null;
    this.fileName = null;
  }

  @Override
  public void actionPerformed(ActionEvent e) {<FILL_FUNCTION_BODY>}

  @Override
  public void open() {
    this.setVisible(true);
  }

  @Override
  public void close() {
    this.dispose();
  }

  @Override
  public boolean isOpened() {
    return this.isVisible();
  }

  @Override
  public void setPresenter(FileSelectorPresenter presenter) {
    this.presenter = presenter;
  }

  @Override
  public FileSelectorPresenter getPresenter() {
    return this.presenter;
  }

  @Override
  public void setFileName(String name) {
    this.fileName = name;
  }

  @Override
  public String getFileName() {
    return this.fileName;
  }

  @Override
  public void showMessage(String message) {
    JOptionPane.showMessageDialog(null, message);
  }

  @Override
  public void displayData(String data) {
    this.area.setText(data);
  }
}

    if (this.ok.equals(e.getSource())) {
      this.fileName = this.input.getText();
      presenter.fileNameChanged();
      presenter.confirmed();
    } else if (this.cancel.equals(e.getSource())) {
      presenter.cancelled();
    }
  
<methods>public void <init>() throws java.awt.HeadlessException,public void <init>(java.awt.GraphicsConfiguration) ,public void <init>(java.lang.String) throws java.awt.HeadlessException,public void <init>(java.lang.String, java.awt.GraphicsConfiguration) ,public javax.accessibility.AccessibleContext getAccessibleContext() ,public java.awt.Container getContentPane() ,public int getDefaultCloseOperation() ,public java.awt.Component getGlassPane() ,public java.awt.Graphics getGraphics() ,public javax.swing.JMenuBar getJMenuBar() ,public javax.swing.JLayeredPane getLayeredPane() ,public javax.swing.JRootPane getRootPane() ,public javax.swing.TransferHandler getTransferHandler() ,public static boolean isDefaultLookAndFeelDecorated() ,public void remove(java.awt.Component) ,public void repaint(long, int, int, int, int) ,public void setContentPane(java.awt.Container) ,public void setDefaultCloseOperation(int) ,public static void setDefaultLookAndFeelDecorated(boolean) ,public void setGlassPane(java.awt.Component) ,public void setIconImage(java.awt.Image) ,public void setJMenuBar(javax.swing.JMenuBar) ,public void setLayeredPane(javax.swing.JLayeredPane) ,public void setLayout(java.awt.LayoutManager) ,public void setTransferHandler(javax.swing.TransferHandler) ,public void update(java.awt.Graphics) <variables>protected javax.accessibility.AccessibleContext accessibleContext,private int defaultCloseOperation,private static final java.lang.Object defaultLookAndFeelDecoratedKey,protected javax.swing.JRootPane rootPane,protected boolean rootPaneCheckingEnabled,private javax.swing.TransferHandler transferHandler