package guj;
import java.awt.BorderLayout;
import java.awt.EventQueue;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.Timer;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JProgressBar;
import javax.swing.border.EmptyBorder;
public class ExemploJProgressBar3Segundos extends JFrame {
    private JPanel contentPane;
    private JProgressBar progressBar;
    private JPanel panel;
    private JButton btnIniciar;
    /**
     * Launch the application.
     */
    public static void main(String[] args) {
        EventQueue.invokeLater(new Runnable() {
            public void run() {
                try {
                    ExemploJProgressBar3Segundos frame = new ExemploJProgressBar3Segundos();
                    frame.setVisible(true);
                } catch (Exception e) {
                    e.printStackTrace();
                }
            }
        });
    }
    /**
     * Create the frame.
     */
    public ExemploJProgressBar3Segundos() {
        setTitle("Exemplo Progress Bar Temporizada");
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        setBounds(100, 100, 450, 300);
        contentPane = new JPanel();
        contentPane.setBorder(new EmptyBorder(5, 5, 5, 5));
        contentPane.setLayout(new BorderLayout(0, 0));
        setContentPane(contentPane);
        contentPane.add(getProgressBar(), BorderLayout.NORTH);
        contentPane.add(getPanel(), BorderLayout.SOUTH);
    }
    private JProgressBar getProgressBar() {
        if (progressBar == null) {
            progressBar = new JProgressBar();
            progressBar.setStringPainted(true);
        }
        return progressBar;
    }
    private JPanel getPanel() {
        if (panel == null) {
            panel = new JPanel();
            panel.add(getBtnIniciar());
        }
        return panel;
    }
    private JButton getBtnIniciar() {
        if (btnIniciar == null) {
            btnIniciar = new JButton("Iniciar!");
            btnIniciar.addActionListener(new ActionListener() {
                public void actionPerformed(ActionEvent e) {
                    btnIniciar.setEnabled(false);
                    porcentagem = 0;
                    timer = new Timer(30, new ActionListener() {
                        @Override
                        public void actionPerformed(ActionEvent e) {
                            porcentagem++;
                            progressBar.setValue(porcentagem);
                            if (porcentagem >= 10000000) {
                                timer.stop();
                                btnIniciar.setEnabled(true);
                            }
                        }
                    });
                    timer.start();
                }
            });
        }
        return btnIniciar;
    }
    private Timer timer;
    private int porcentagem;
}