Exercise: Creating the Chatclient GUI, Part 3 (Level 2)

                    In this exercise, you will enhance the GUI for a chat room application. You will complete the GUI for the ChatClient
                by adding a Choice component and two menus.

Task 1 - Modifying the ChatClient Program

Using a text editor, modify the ChatClient source file in the project directory. This class must implement the GUI design in Figure 12-1 of Level 1.
- Add the username Choice component under the Send and Quit buttons. This component enables you to select a name that is posted with every chat line taht you enter. Add several username options including your full name and a few nicknames, such as Grand Poobah or Java Geek.
- Enhance the listeners for the Send button and TextField to write the username to the output TextArea component.
- Add the File menu. This menu must include a Quit menu item that terminates the program when selected.
- (Optional) Add the Help menu. This menu must include an About menu item that pops up a simple dialog box, which displays a comment about the program and about you, the developer.

Task 2 - Compiling the ChatClient Program

On the command line, use the javac command to compile the ChatClient program.

Task 3 - Running the ChatClient Program

On the command line, use the java command to run the ChatClient program. You should see the GUI shown in Figure 12-1 of Level 1. If your GUI does not look exactly like the figure, then edit the code to tweak the design to match this figure.