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Important Introduction to Programming Short Questions

Chapter: 26
Question 1:
What is the scope resolution operator in C++?
Answer: The scope resolution operator (::) is used to define a class's member function outside of the class definition.
Chapter: 26
Question 2:
Can you define a function inside a class in C++?
Answer: Yes, you can define a function inside a class, and the compiler will treat it as an inline function.
Chapter: 26
Question 3:
What is the purpose of the 'get' functions in a class?
Answer: 'Get' functions are used to retrieve the values of the private data members of a class.
Chapter: 26
Question 4:
How do objects of a class interact with member functions?
Answer: Objects of a class call member functions to manipulate their own data members. Each object operates on its own set of data.
Chapter: 26
Question 5:
What would happen if you try to access a private member of a class directly?
Answer: The program will generate a compilation error because private members cannot be accessed directly outside the class.
Chapter: 26
Question 6:
What is the advantage of keeping data members private in a class?
Answer: Keeping data members private prevents accidental or unauthorized changes to the data, ensuring that the data is manipulated only through controlled member functions.
Chapter: 27
Question 7:
What is the primary difference between function-oriented and object-oriented programming?
Answer: In function-oriented programming, data is processed by functions, while in object-oriented programming, objects contain both data and methods to manipulate that data.
Chapter: 27
Question 8:
What does the concept of data hiding or encapsulation refer to in a class?
Answer: Encapsulation refers to the practice of restricting access to certain parts of an object, making some data private and accessible only through specific functions.
Chapter: 27
Question 9:
What is the purpose of a constructor in a class?
Answer: A constructor initializes the data members of an object when it is created, ensuring that the object is in a known valid state.
Chapter: 27
Question 10:
What happens if a constructor is not defined by the user in a class?
Answer: If a constructor is not defined, the C++ compiler automatically provides a default constructor, which does no initialization.