Java How to Program, Early Objects, 11th Edition

... displayMessage(final String messageToDisplay)
163    {
164       SwingUtilities.invokeLater(
165          new Runnable()
166          {
167             public void run() // updates displayArea
168             {
169                displayArea.append(messageToDisplay);
170             }
171          }
172       );
173    }
174
175    // manipulates enterField in the event-dispatch thread
176    private void setTextFieldEditable(final boolean editable)
177    {
178       SwingUtilities.invokeLater(
179          new Runnable()
180          {
181             public void run() // sets enterField's editability
182             {
183                enterField.setEditable(editable);
184             }
185          }
186         );
187     }
188  }

Fig. 28.6 Class that tests the Client.

 1   // Fig. 28.6: ClientTest.java
 2   // Class that tests the Client.
 3   import javax.swing.JFrame;
 4
 5   public class ClientTest
 6   {
 7      public static void main(String[] args) ...