Fundamentals of Object-Oriented Programming - C++ - Friends - Functional Notation

The tutorial explains how to modify a distance class to include a friend function that calculates the square of a distance in square feet. It covers defining the function with a float return type, passing a distance object, and performing calculations to convert feet and inches into a floating point number. The tutorial demonstrates how to implement this function in the main program, create a distance object, and print the results, showing the distance and its square in square feet.

What keyword is used to define a friend function in a class?

• friend

• public

• private

• protected

What is the return type of the function that calculates the square of a distance?

• int

• double

• float

• void

How is the feet value converted to a floating point in the function?

• By dividing feet by 12

• By subtracting inches from feet

• By multiplying feet by 12

• By adding feet and inches

What values are passed to the distance object in the main function?

• Five feet and six inches

• Four feet and seven inches

• Three feet and five inches

• Six feet and eight inches

What is the calculated square of the distance in square feet?

• 22.0072 square feet

• 20.0058 square feet

• 19.0045 square feet

• 21.0069 square feet