700+ câu trắc nghiệm Ngôn ngữ lập trình C có đáp án - Phần 17

Friend functions have access only to public members of the class.

A function designed as public can be accessible by non-members of a class.

Friendship is commutative.

New and delete are operators.

We can implement generic classes using templates

Using operator overloading we can invent new operators.

Inheritance helps in making a general class into a more specific class.

A base class is never used to create objects.

Classes can be inherited privately.

It Is legal to return local variables from a function which returns by reference.

Constructors can be virtual like virtual destructors

C++ is a pure object oriented programming language.

In C++ one can define a function within another function.

A class encapsulates the implementation and interface of a user-defined data type and constitutes an abstract data type.

In c++ an identifier can begin with a $ sign.

“My Variable” is a valid identifier in C++.

In C++ one can get the memory addresses of variables and functions.

%= is not a operator in C++

std::cout is a standard input stream.

Preprocessor #define macro and inline functions use the same mechanism.

All C++ functions are recursive.

The ‘break’ keyword is only used in the switch..case statement.

The new operator returns the address and size of the memory block that it allocates.

The heap storage is used for local objects.