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See:
Description
| Interface Summary | |
| EstimatorListener | The interface that must be implemented to listen for events associated with the EstimatorModel. |
| Class Summary | |
| EstimatorController | The controller class for use with an EstimatorModel class, and any associated view(s). |
| EstimatorEvent | The class which represents events in the Estimator Model. |
| EstimatorModel | The EstimatorModel is the model of an estimator. |
| EstimatorView1 | A text view to go along with an EstimatorModel and EstimatorController. |
| EstimatorView2 | A graphical view to be used with EstimatorModel and EstimatorController. |
| PiEstimator | The PiEstimator, which brings the model, view, and controller together to form the final applet. |
| PiEstimatorModel | A subclass of EstimatorModel that estimates the value of PI by using the formula pi=4-(4/3)+(4/5)-(4/7)+... |
The package unl.cusack.estimator is a group of files that demonstrates the basics of a model-view-controller applet.
There are 3 major components of a model-view-controller application-- The model, the view, and the controller. Breifly, they can be described as
The other components of the package are the event the listener which work together to allow event-handling between the various components, and the final application.
You will notice that I have included 2 different views in the package. The main reason I have done this is to demonstrate how easy it is to create additional views when one uses the MVC architecture. One could just as easily define multiple controllers.
I have also defined the main model (EstimatorModel) as abstract. This is because it does not define what kind of data is being estimated. I can now easily extend this class to display, for example, estimates of e, or anything else I want, just be declaring a few methods. I can use the views and controllers as is, because they have no knowledge of the inner workings of the model at this level.
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