package swing.ejemplo;

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

public class SwingApplication {
	private static String labelPrefix = "Nombre of button clicks: ";
	private int numClicks = 0;

	public Component createComponents() {
		final JLabel label = new JLabel (labelPrefix + "0     ");
		JButton button = new JButton("I'm a Swing button!");
		button.setMnemonic(KeyEvent.VK_I);
		button.addActionListener(new ActionListener () {
			public void actionPerformed(ActionEvent e) {
				numClicks++;
				label.setText(labelPrefix + numClicks);
			}
		});
		label.setLabelFor(button);

		JPanel pane = new JPanel();
		pane.setBorder(BorderFactory.createEmptyBorder(
							30,
							30,
							10,
							30)
							);
		pane.setLayout(new GridLayout (0,1));
		pane.add(button);
		pane.add(label);

		return pane;

	}
	public static void main (String[] args) {
		try {
			UIManager.setLookAndFeel(
				UIManager.getCrossPlatformLookAndFeelClassName());
		} catch (Exception e) { }

		JFrame frame = new JFrame ("SwingApplication");
		SwingApplication app =new SwingApplication();
		Component contents = app.createComponents();
		frame.getContentPane().add(contents, BorderLayout.CENTER);

		frame.addWindowListener(new WindowAdapter() {
			public void windowClosing(WindowEvent e) {
				System.exit(0);
			}
		});
		frame.pack();
		frame.setVisible(true);
	}
}