/* =========================================================== * TradeManager : An application to trade strategies for the Java(tm) platform * =========================================================== * * (C) Copyright 2011-2011, by Simon Allen and Contributors. * * Project Info: org.trade * * This library is free software; you can redistribute it and/or modify it * under the terms of the GNU Lesser General Public License as published by * the Free Software Foundation; either version 2.1 of the License, or * (at your option) any later version. * * This library is distributed in the hope that it will be useful, but * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public * License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, * USA. * * [Java is a trademark or registered trademark of Oracle, Inc. * in the United States and other countries.] * * (C) Copyright 2011-2011, by Simon Allen and Contributors. * * Original Author: Simon Allen; * Contributor(s): -; * * Changes * ------- * */ package org.trade.ui.widget; import java.awt.BorderLayout; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import java.text.SimpleDateFormat; import java.util.Calendar; import javax.swing.JPanel; import javax.swing.JTextField; /** */ public class Clock extends JPanel { /** * */ private static final long serialVersionUID = 2205177128289778533L; private JTextField timeField = new JTextField(5); // set by timer listener private static SimpleDateFormat dateFormat = new SimpleDateFormat("HH:mm:ss"); public Clock() { // Build the GUI - only one panel this.setLayout(new BorderLayout()); this.add(timeField); // Create a 1-second timer and action listener for it. // Specify package because there are two Timer classes javax.swing.Timer t = new javax.swing.Timer(1000, new ActionListener() { public void actionPerformed(ActionEvent e) { Calendar now = Calendar.getInstance(); timeField.setText(dateFormat.format(now.getTime())); } }); t.start(); } }