GridLayout

package framegridtest;

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

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

public class MyFrameGrid extends JFrame implements ActionListener {
	private static final long serialVersionUID = 1L;
	
	private JButton closeButton;
	private JButton okButton;

	public MyFrameGrid() {
		setTitle("Finestra con form di prova");

		setLayout(new GridLayout(2,1));
		
		closeButton = new JButton("Termina");
		closeButton.addActionListener(this);
		add(closeButton);
		okButton = new JButton("Ok");
		okButton.addActionListener(this);
		add(okButton);
		pack();
	}

	@Override
	public void actionPerformed(ActionEvent evt) {
		if (evt.getSource() == closeButton) {
			System.out.println("Termina");
			dispose();
		} else if (evt.getSource() == okButton) {
			System.out.println("Ok");
			dispose();			
		}
	}
}