DP Computer Science Questionbank

The same method identifier addSwimmers is used in both classes Race and Event.

Explain why this does not cause a conflict.

Outline how method overriding can help to create the new class FinalsOnlyEvent.

Outline two advantages of the OOP feature “inheritance”.

The company that owns this restaurant also owns hotels, shops, and a car hire business. The programs that manage the finances of these different businesses include classes similar to the ones shown in this paper.

Explain how inheritance could be used as a tool to both improve the clarity of the design and to reduce the amount of code that needs to be written.

By making reference to any of the classes from 12(a), describe two benefits that a programming team would gain from the use of encapsulation.

Describe two disadvantages of using Object Oriented Programming (OOP).

Outline the use of data-hiding as a security feature in OOP.

Outline one advantage of using modularity in program development.

The Arrival object has two methods named compareWith.

Outline why calling the compareWith method does not cause a conflict.

Explain one advantage of the OOP feature “inheritance” with reference to this scenario.

Define the term inheritance.

Outline two reasons why the use of multiple programming teams in different locations may be problematic when developing an integrated software solution.

Describe two advantages of using libraries of classes.

Outline two differences between inheritance and aggregation.

With reference to the two methods with the same name in the Points class, explain the OOP feature that makes it possible to successfully implement either of these methods.