import java.awt.FlowLayout;
import java.awt.event.ActionListener;
import java.awt.event.ActionEvent;
import javax.swing.JFrame;
import javax.swing.JButton;
import javax.swing.Icon;
import javax.swing.ImageIcon;
import javax.swing.JOptionPane;

public class ButtonFrame extends JFrame{
	private JButton plainJButton;
	private JButton fancyButton;

	public ButtonFrame(){

		super("Testando Botões");
		setLayout(new FlowLayout());

		plainJButton = new JButton("Botão Simples");
		add(plainJButton);

		Icon bug1 = new ImageIcon(getClass().getResource("bug1.gif"));
		Icon bug2 = new ImageIcon(getClass().getResource("bug2.gif"));
		fancyButton = new JButton("Botão Feito", bug1);
		fancyButton.setRolloverIcon(bug2);
		add(fancyButton);

		ButtonHandler handler = new ButtonHandler();
		fancyButton.addActionListener(handler);
		plainJButton.addActionListener(handler);

	}

	private class ButtonHandler implements ActionListener{
		public void actionPerformed(ActionEvent event){
			JOptionPane.showMessageDialog(ButtonFrame.this, String.format("Pressionado: %", event.getActionCommand()));
		}
	}
}