Now, you must implement one public instance method and fifteen private instance methods for Stopwatch. You can implement them in any order.
Method open
For this example, begin by implementing open, which calls methods that define the user interface:
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Ensure that Stopwatch is selected.
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2.
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Save the method. If you typed in the text shown above, open is shown in the list of methods.
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Now, define the private instance methods. The following two methods go into the Getters & Setters category and are used for displaying the elapsed time:
Method timeElapsedDisplay:
Method timeElapsedDisplay
The following eleven methods go into the Window Creation category:
Method createWindow
Method createTopLevelShell
Method createShell
Method createForm
Method createTimeWidgets
Method createLabel
Method createButtons
Method createStartButton
Method createStopButton
Method manageChildren
Method realizeWindow
At this point, you can open an instance of Stopwatch by evaluating the following in a Transcript or Workspace window:
Method startButtonMotion:clientData:callData:
Method stopButtonMotion:clientData:callData:
Method calculateTime:
