Java tutorial
/* * Copyright (c) 2007, Romain Guy * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * * Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above * copyright notice, this list of conditions and the following * disclaimer in the documentation and/or other materials provided * with the distribution. * * Neither the name of the TimingFramework project nor the names of its * contributors may be used to endorse or promote products derived * from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ import java.awt.BorderLayout; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import java.lang.reflect.InvocationTargetException; import javax.swing.JButton; import javax.swing.JFrame; import javax.swing.JLabel; import javax.swing.JOptionPane; import javax.swing.SwingUtilities; /** * @author Romain Guy */ public class SwingThreadingWait extends JFrame implements ActionListener { private JLabel counter; private long start = 0; public SwingThreadingWait() { super("Invoke & Wait"); JButton freezer = new JButton("Open File"); freezer.addActionListener(this); counter = new JLabel("Time elapsed: 0s"); add(freezer, BorderLayout.CENTER); add(counter, BorderLayout.SOUTH); pack(); setLocationRelativeTo(null); setDefaultCloseOperation(EXIT_ON_CLOSE); } public void actionPerformed(ActionEvent e) { start = System.currentTimeMillis(); new Thread(new Runnable() { public void run() { while (true) { try { Thread.sleep(1000); } catch (InterruptedException e) { } final int elapsed = (int) ((System.currentTimeMillis() - start) / 1000); SwingUtilities.invokeLater(new Runnable() { public void run() { counter.setText("Time elapsed: " + elapsed + "s"); } }); if (elapsed == 4) { try { final int[] answer = new int[1]; SwingUtilities.invokeAndWait(new Runnable() { public void run() { answer[0] = JOptionPane.showConfirmDialog(SwingThreadingWait.this, "Abort long operation?", "Abort?", JOptionPane.YES_NO_OPTION); } }); if (answer[0] == JOptionPane.YES_OPTION) { return; } } catch (InterruptedException e1) { } catch (InvocationTargetException e1) { } } } } }).start(); } public static void main(String... args) { SwingUtilities.invokeLater(new Runnable() { public void run() { SwingThreadingWait edt = new SwingThreadingWait(); edt.setVisible(true); } }); } }