•Building your own classes
ØPrinciple:
A.Object Oriented approach versus classical programming:
¬Follow a class model, i.e. derive an abstract class (instantiate its abstract methods)
B.Automatic integration versus manual integration:
¬Use a standard constructor so that it can be invoked automatically (basically with UI-defined global and local parameters)
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ØIn practice: plug and play:
1.Write your class
2.Make it accessible (include it spis.jar in the right package)
3.Type its name in UI
¬As opposed to manual integration where you had to modify some piece of old code to call your new code
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ØDocumented in Writing UI-supported classes.html
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