import javax.swing.*;
import java.awt.event.*;

class Mas extends JFrame
{
	JButton gomb;
	Mas()
	{
		gomb = new JButton("Nyomj");
		gomb.addActionListener(new GombKezelo());
		
		setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
		add(gomb);
		setSize(300, 200);
	}
	class GombKezelo implements ActionListener
	{
		public void actionPerformed(ActionEvent e)
		{
			dispose();
		}
	}
}

class Program extends JFrame
{
	JButton gomb;
	Program()
	{
		gomb = new JButton("Nyomj");
		gomb.addActionListener(new GombKezelo());
		
		setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		add(gomb);
		setSize(200, 100);
		setVisible(true);		
	}
	class GombKezelo implements ActionListener
	{
		public void actionPerformed(ActionEvent e)
		{
			Mas m = new Mas();
			m.setVisible(true);
		}
	}	
	public static void main(String args[])
	{
		new Program();
	}
}