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What is the relationship between a type and its instances?
What is the relationship between a type and its instances?
- A type can only have a single instance associated with it.
- A type is an abstraction and instances are concrete entities created from that type. (correct)
- A type is a concrete entity and instances are abstractions of that type.
- A type and its instances are completely unrelated concepts.
What is the difference between an attribute and a behavior of an instance?
What is the difference between an attribute and a behavior of an instance?
- Attributes are the data members of a class, while behaviors are the member functions.
- Attributes are characteristics of an instance, while behaviors are the operations the instance can perform. (correct)
- Attributes are static properties of a class, while behaviors are dynamic properties.
- Attributes and behaviors are the same thing, just different names for the same concept.
What is the relationship between a class and an object?
What is the relationship between a class and an object?
- A class is a collection of objects, while an object is a single instance of a class.
- A class is a type and an object is an instance of that type. (correct)
- A class is a concrete entity and an object is an abstraction of that class.
- A class and an object are completely unrelated concepts.
What is the purpose of a data member in a class?
What is the purpose of a data member in a class?
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Which of the following statements about types and instances is true?
Which of the following statements about types and instances is true?
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What is the purpose of a member function in a C++ class?
What is the purpose of a member function in a C++ class?
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How many sections are needed to write an object-oriented program in C++?
How many sections are needed to write an object-oriented program in C++?
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What is the purpose of the const keyword in the member function declarations getRadius() and getArea()?
What is the purpose of the const keyword in the member function declarations getRadius() and getArea()?
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What is the purpose of the using namespace std; line in the code?
What is the purpose of the using namespace std; line in the code?
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What is the purpose of the double PI = 3.14; line in the getArea() and getPerimeter() member function definitions?
What is the purpose of the double PI = 3.14; line in the getArea() and getPerimeter() member function definitions?
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