Java AWT BorderLayout add component

// BorderLayout containing five buttons.
import java.awt.BorderLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

import javax.swing.JButton;
import javax.swing.JFrame;

public class Main extends JFrame implements ActionListener {
  private final JButton[] buttons; // array of buttons to hide portions
  private static final String[] names = { "Hide North", "Hide South", "Hide East", "Hide West", "Hide Center" };
  private final BorderLayout layout;

  // set up GUI and event handling
  public Main() {
    super("BorderLayout Demo");

    layout = new BorderLayout(5, 5); // 5 pixel gaps
    setLayout(layout);/*from   w ww  . j  a v  a 2s  .  c o  m*/
    buttons = new JButton[names.length];

    // create JButtons and register listeners for them
    for (int count = 0; count < names.length; count++) {
      buttons[count] = new JButton(names[count]);
      buttons[count].addActionListener(this);
    }

    add(buttons[0], BorderLayout.NORTH);
    add(buttons[1], BorderLayout.SOUTH);
    add(buttons[2], BorderLayout.EAST);
    add(buttons[3], BorderLayout.WEST);
    add(buttons[4], BorderLayout.CENTER);
  } 
  @Override
  public void actionPerformed(ActionEvent event) {
    // check event source and lay out content pane correspondingly
    for (JButton button : buttons) {
      if (event.getSource() == button)
        button.setVisible(false); // hide the button that was clicked
      else
        button.setVisible(true); // show other buttons
    }

    layout.layoutContainer(getContentPane()); // lay out content pane
  }

  public static void main(String[] args) {
    Main Main = new Main();
    Main.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    Main.setSize(300, 200);
    Main.setVisible(true);
  }
}