import javax.swing.JFrame;
import javax.swing.JButton;
import javax.swing.BoxLayout;
import javax.swing.JPanel;

class Program01 extends JFrame
{
	JButton gomb1 = new JButton("Első");
	JButton gomb2 = new JButton("Második");
	JButton gomb3 = new JButton("Harmadik");
	
	Program01()
	{
		
		//PAGE_AXIS, X_AXIS, Y_AXIS, LINE_AXIS
		setLayout(new BoxLayout(getContentPane(), BoxLayout.LINE_AXIS) );
		add(gomb1);
		add(gomb2);
		add(gomb3);
		
		pack();
		setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		setVisible(true);
	}
	public static void main(String[] args)
	{
		new Program01();
	}	
}