operator overloading

Multiple Choice

Why might it be beneficial to overload operators such as '+' in a class like Money instead of using functions like add(cost, tax)?

• It makes the code more readable and intuitive.

• It allows for more complex calculations.

• It reduces the need for functions in the class.

• It increases the performance of the program.

Multiple Choice

Which of the following statements about operator overloading in C++ is correct?

• At least one argument of an overloaded operator must be of a class type

• You can create new operators in C++

• The precedence of an overloaded operator can be changed

• All operators can be overloaded

Multiple Choice

Which of the following statements best describes the purpose of the overloaded operator+ in the Money class?

• It multiplies two Money objects.

• It compares two Money objects for equality.

• It returns the sum of the values of two Money objects.

• It converts an integer to a Money object.

Multiple Choice

Which constructor in the Money class allows the addition of an integer value to a Money object?

• Money(long dollars, int cents)

• Money(double amount)

• Money(long dollars)

• Money()

Multiple Choice

Which of the following statements is true about type conversion in the Money class?

• The compiler can always convert any numeric type to Money.

• The compiler can convert an integer to Money if there is a suitable constructor.

• The compiler cannot perform any type conversion for the Money class.

• The compiler can only convert double values to Money by default.

Multiple Choice

Based on the overloaded << operator declaration for the Money class, what type should the operator return?

• void

• int

• ostream&

• Money&

Multiple Choice

Why is the return type of the overloaded << operator 'ostream&' instead of just 'ostream'?

• Because we want to return the stream itself, not its value

• Because ostream& is easier to use

• Because ostream cannot be returned

• Because << operator does not return anything