import java.awt.*;
import java.awt.event.*;

public class JanelaBotao extends Janela {
    Button b = new Button("OK");

    class ButtonHandler implements ActionListener {
	public void actionPerformed(ActionEvent ae) {
	    System.out.println(b.getActionCommand() +": " + ae);
	}
    }

    public JanelaBotao() {
	super("Janela com botao");
	b.addActionListener(new ButtonHandler());
	add(b);
    }

    public static void main(String[] args) {
	JanelaBotao jb = new JanelaBotao();
	jb.setVisible(true);
    }

}