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Questions and Answers
What is the operator used to allocate objects dynamically in C++?
What is the operator used to allocate objects dynamically in C++?
- "delete"
- "malloc"
- "new" (correct)
- "free"
Can objects be created for abstract classes in C++?
Can objects be created for abstract classes in C++?
- Yes, but only if they have at least one concrete member function.
- No, objects cannot be created for abstract classes in C++. (correct)
- Yes, but only if they have at least one pure virtual function.
- Yes, but only if they are derived from a concrete class.
What keyword should be placed in the class declaration to declare a friend function?
What keyword should be placed in the class declaration to declare a friend function?
- "this"
- "friend" (correct)
- "public"
- "private"
What is "cin" in C++ programming?
What is "cin" in C++ programming?
Which access specifier allows functions and data to be accessible to other parts of the program?
Which access specifier allows functions and data to be accessible to other parts of the program?
When are constructors called in C++?
When are constructors called in C++?
Can member functions be defined externally using the scope resolution operator in C++?
Can member functions be defined externally using the scope resolution operator in C++?
How are objects of a class created in C++?
How are objects of a class created in C++?
What is the default access specifier for members of a C++ class?
What is the default access specifier for members of a C++ class?
How can class objects be created in C++?
How can class objects be created in C++?
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Study Notes
- C++ classes have default data members and member functions.
- The operator "new" is used to allocate objects dynamically.
- Member functions can be defined externally using the scope resolution operator.
- Objects cannot be created for abstract classes in C++.
- Objects of a class can be created using the class name followed by parentheses.
- Class objects can be created statically or dynamically and are stored in memory.
- "cin" is an input stream in C++ programming.
- Public access allows functions and data to be accessible to other parts of the program.
- The "friend" keyword should be placed in the class declaration to declare a friend function.
- Constructors are called automatically when an object of a class is created.
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