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Chapter 2. Object Orientation > Certification Objective: Polymorphism (Exam Obj...

Certification Objective: Polymorphism (Exam Objective 5.2)

5.2 Given a scenario, develop code that demonstrates the use of polymorphism. Further, determine when casting will be necessary and recognize compiler vs. runtime errors related to object reference casting.

Remember, any Java object that can pass more than one IS-A test can be considered polymorphic. Other than objects of type Object, all Java objects are polymorphic in that they pass the IS-A test for their own type and for class Object.


  

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