import java.awt.FlowLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.Icon;
import javax.swing.ImageIcon;
import javax.swing.JOptionPane;
public class ButtonFrame extends JFrame {
    private JButton botaotext;
    private JButton botaoicon;

   public ButtonFrame(){
       super("Testing Buttons");
       setLayout(new FlowLayout());
       botaotext = new JButton("Botao com Texto");
       add(botaotext);
       Icon bot = new ImageIcon(getClass().getResource("botao.png"));
       Icon boom = new ImageIcon(getClass().getResource( "boom.png"));
       botaoicon = new JButton("Botao com icone",bot);
       botaoicon.setRolloverIcon(boom);
       add(botaoicon);
       ButtonHandler handler = new ButtonHandler();
       botaoicon.addActionListener(handler);
       botaotext.addActionListener(handler);


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