package lezione_8;

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

public class Ascoltatore implements ActionListener {

	public void actionPerformed(ActionEvent e) {
		JButton pulsante = (JButton) e.getSource();
		Color c = pulsante.getBackground();
		if (c==Color.RED)
			pulsante.setBackground(null);
		else pulsante.setBackground(Color.RED);
	} 
}