Java AWT GridLayout set gap

// GridLayout containing six buttons.
import java.awt.Container;
import java.awt.GridLayout;
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 static final String[] names = { "one", "two", "three", "four", "five", "six" };
  private final JButton[] buttons = new JButton[names.length];
  private boolean toggle = true; 
  private final Container container; 
  private final GridLayout gridLayout1; 
  private final GridLayout gridLayout2;

  public Main() {
    super("GridLayout Demo");
    gridLayout1 = new GridLayout(2, 3, 5, 5); // 2 by 3; gaps of 5
    gridLayout2 = new GridLayout(3, 2); // 3 by 2; no gaps
    container = getContentPane();// w ww.j  a  v  a 2  s.  c  om
    setLayout(gridLayout1);

    for (int count = 0; count < names.length; count++) {
      buttons[count] = new JButton(names[count]);
      buttons[count].addActionListener(this);
      add(buttons[count]); 
    }
  }
  // handle button events by toggling between layouts
  @Override
  public void actionPerformed(ActionEvent event) {
    if (toggle) {
      container.setLayout(gridLayout2);
    }else {
      container.setLayout(gridLayout1);
    }
    toggle = !toggle;
    container.validate(); // re-lay out container
  }

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