// Fig. 10.23: TimeTestWindow2.java // Demonstrating the Time class set and get methods import java.awt.*; import java.awt.event.*; import javax.swing.*; public class TimeTestWindow2 extends JFrame { private Time time; private JLabel hourLabel, minuteLabel, secondLabel; private JTextField hourField, minuteField, secondField, displayField; // constructor public TimeTestWindow2() { // call JFrame constructor to set title bar string super( "Anonymous Inner Class Demonstration" ); time = new Time(); // create Time object createGUI(); // set up GUI registerEventHandlers(); // set up event handling } // create GUI components and attach to content pane private void createGUI() { Container container = getContentPane(); container.setLayout( new FlowLayout() ); hourLabel = new JLabel( "Set Hour" ); hourField = new JTextField( 10 ); container.add( hourLabel ); container.add( hourField ); minuteLabel = new JLabel( "Set minute" ); minuteField = new JTextField( 10 ); container.add( minuteLabel ); container.add( minuteField ); secondLabel = new JLabel( "Set Second" ); secondField = new JTextField( 10 ); container.add( secondLabel ); container.add( secondField ); displayField = new JTextField( 30 ); displayField.setEditable( false ); container.add( displayField ); } // end method createGUI // register event handlers for hourField, minuteField and secondField private void registerEventHandlers() { // register hourField event handler hourField.addActionListener( new ActionListener() { // anonymous inner class public void actionPerformed( ActionEvent event ) { time.setHour( Integer.parseInt( event.getActionCommand() ) ); hourField.setText( "" ); displayTime(); } } // end anonymous inner class ); // end call to addActionListener for hourField // register minuteField event handler minuteField.addActionListener( new ActionListener() { // anonymous inner class public void actionPerformed( ActionEvent event ) { time.setMinute( Integer.parseInt( event.getActionCommand() ) ); minuteField.setText( "" ); displayTime(); } } // end anonymous inner class ); // end call to addActionListener for minuteField secondField.addActionListener( new ActionListener() { // anonymous inner class public void actionPerformed( ActionEvent event ) { time.setSecond( Integer.parseInt( event.getActionCommand() ) ); secondField.setText( "" ); displayTime(); } } // end anonymous inner class ); // end call to addActionListener for secondField } // end method registerEventHandlers // display time in displayField public void displayTime() { displayField.setText( "The time is: " + time ); } // create TimeTestWindow2 object, register for its window events // and display it to begin application's execution public static void main( String args[] ) { TimeTestWindow2 window = new TimeTestWindow2(); // register listener for windowClosing event window.addWindowListener( // anonymous inner class for windowClosing event new WindowAdapter() { // terminate application when user closes window public void windowClosing( WindowEvent event ) { System.exit( 0 ); } } // end anonymous inner class ); // end call to addWindowListener for window window.setSize( 400, 105 ); window.setVisible( true ); } // end main } // end class TimeTestWindow2 /************************************************************************** * (C) Copyright 1992-2003 by Deitel & Associates, Inc. and * * Prentice Hall. All Rights Reserved. * * * * DISCLAIMER: The authors and publisher of this book have used their * * best efforts in preparing the book. These efforts include the * * development, research, and testing of the theories and programs * * to determine their effectiveness. The authors and publisher make * * no warranty of any kind, expressed or implied, with regard to these * * programs or to the documentation contained in these books. The authors * * and publisher shall not be liable in any event for incidental or * * consequential damages in connection with, or arising out of, the * * furnishing, performance, or use of these programs. * *************************************************************************/