phonebook.java

电话号码薄应用程序

// Tutorial 28: PhoneBook.java
// An application announces phone number with FreeTTS.
import java.awt.*;
import java.awt.event.*;
import java.util.*;
import javax.swing.*;

public class PhoneBook extends JFrame 
{
   // JLabels to display instructions
   private JLabel instruction1JLabel;
   private JLabel instruction2JLabel;

   // JComboBox for names
   private JComboBox nameJComboBox;

   // JButton to get phone number
   private JButton getPhoneNumberJButton;

   // fill array with people's names
   private String[] namesArray = { "John", "Jennifer", "Howard" };

   // fill array with people's phone numbers
   private String[] numbersArray = 
      { "[phone]", "[phone]", "[phone]" };

   // no-argument constructor
   public PhoneBook()
   {
      createUserInterface(); // set up GUI

   } // end constructor

   // create and position GUI components; register event handler
   private void createUserInterface()
   {
      // get content pane for attaching GUI components
      Container contentPane = getContentPane();

      // enable explicit positioning of GUI components
      contentPane.setLayout( null );

      // set up instruction1JLabel
      instruction1JLabel = new JLabel();
      instruction1JLabel.setBounds( 16, 8, 264, 23 );
      instruction1JLabel.setText(
         "Select a name from the combo box." );
      contentPane.add( instruction1JLabel );

      // set up instruction2JLabel
      instruction2JLabel = new JLabel();
      instruction2JLabel.setBounds( 16, 35, 264, 23 );
      instruction2JLabel.setText(
         "Click the button to listen to the phone number." );
      contentPane.add( instruction2JLabel );

      // set up nameJComboBox
      nameJComboBox = new JComboBox( namesArray );
      nameJComboBox.setBounds( 50, 65, 150, 23 );
      contentPane.add( nameJComboBox );

      // set up getPhoneNumberJButton
      getPhoneNumberJButton = new JButton();
      getPhoneNumberJButton.setBounds( 50, 100, 150, 23 );
      getPhoneNumberJButton.setText( "Get Phone Number" );
      contentPane.add( getPhoneNumberJButton );
      getPhoneNumberJButton.addActionListener(

         new ActionListener()  // anonymous inner class
         {
            // event handler called when getPhoneNumberJButton
            // is clicked 
            public void actionPerformed( ActionEvent event )
            {
               getPhoneNumberJButtonActionPerformed( event );
            }

         } // end anonymous inner class

      ); // end call to addActionListener

      // set properties of application's window
      setTitle( "Phone Book" );  // set title bar string
      setSize( 300, 160 );       // set window size
      setVisible( true );        // display window

      // ensure synthesizer is cleaned up
      // when user closes application
      addWindowListener(

         new WindowAdapter()  // anonymous inner class
         {
            public void windowClosing( WindowEvent event )
            {
               frameWindowClosing( event );
            }

         } // end anonymous inner class

      ); // end addWindowListener

   } // end method createUserInterface

   // speak a person's phone number
   private void getPhoneNumberJButtonActionPerformed( 
      ActionEvent event )
   {

   } // end method getPhoneNumberJButtonActionPerformed

   // clean up synthesizer
   private void frameWindowClosing( WindowEvent event )
   {

   }  // end method frameWindowClosing 

   // main method
   public static void main( String[] args ) 
   {
      PhoneBook application = new PhoneBook();

   } // end method main

} // end class PhoneBook

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