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Questions and Answers
What is the purpose of inheritance in object-oriented programming?
What is the purpose of inheritance in object-oriented programming?
- To create new classes
- To bundle data and methods
- To inherit properties from one class into another (correct)
- To create private methods
True or false:Inheritance can only be used to inherit properties from one class into another within the same module.
True or false:Inheritance can only be used to inherit properties from one class into another within the same module.
False (B)
Which function will output "2, 6" when called?
Which function will output "2, 6" when called?
- Test1(
- Test2( (correct)
- Test3(
- Test4(
True or false: The output of the function Test2() will always be "2, 6" when called.
True or false: The output of the function Test2() will always be "2, 6" when called.
Can a subclass inherit private methods from its superclass?
Can a subclass inherit private methods from its superclass?
True or false: Private methods can be inherited by a subclass from its superclass.
True or false: Private methods can be inherited by a subclass from its superclass.
Are private members visible outside of the unit or program where its class is declared?
Are private members visible outside of the unit or program where its class is declared?
True or false: Private members can be accessed and modified outside of the unit or program where its class is declared.
True or false: Private members can be accessed and modified outside of the unit or program where its class is declared.
True or false: Public members are only visible within the same module where its class is declared.
True or false: Public members are only visible within the same module where its class is declared.
Where are protected members visible?
Where are protected members visible?
What is encapsulation used for in object-oriented programming?
What is encapsulation used for in object-oriented programming?
True or false: Protected members are only visible from the same class where it is declared and from any descendant class.
True or false: Protected members are only visible from the same class where it is declared and from any descendant class.
True or false: Encapsulation is the process of hiding data and methods from other classes and modules.
True or false: Encapsulation is the process of hiding data and methods from other classes and modules.
What is a linked list?
What is a linked list?
Does hierarchical classification rely on inheritance?
Does hierarchical classification rely on inheritance?
True or false: Linked lists can only be used to store integer data types.
True or false: Linked lists can only be used to store integer data types.
What is a queue?
What is a queue?
True or false: Hierarchical classification is a feature of encapsulation.
True or false: Hierarchical classification is a feature of encapsulation.
What is the Enqueue operation?
What is the Enqueue operation?
True or false: A queue is a data structure that has three operations: Enqueue, Dequeue, and Front.
True or false: A queue is a data structure that has three operations: Enqueue, Dequeue, and Front.
True or false: Inheritance is a way to create a new class by deriving from an existing class.
True or false: Inheritance is a way to create a new class by deriving from an existing class.
What is the Dequeue operation?
What is the Dequeue operation?
True or false: A linked list is a linear data structure that can be used to implement stacks and queues.
True or false: A linked list is a linear data structure that can be used to implement stacks and queues.
Where are public members visible?
Where are public members visible?
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Study Notes
- Inheritance is used to inherit properties from one class into another.
- The output of the function Test2() is "2, 6" when called.
- Private methods are not inherited by a subclass from its superclass.
- Private members are invisible outside of the unit or program where its class is declared.
- Public members are visible wherever its class can be referenced.
- Protected members are visible anywhere in the module where its class is declared and from any descendant class.
- Encapsulation is used to bundle data and methods that manipulate the data.
- Linked lists are a data type that consists of a sequence of nodes.
- Hierarchical classification is supported by inheritance.
- A queue is a data structure that has four operations: Enqueue, Dequeue, Front, and Isempty.
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