In C create a do while loop. Inside the loop intake an age as an integer. If the age is less than 21 then the loop should repeat until an age over 21 is inputted.

in python for glass box testing of a while loop, you should test cases where: a) the while loop is not entered b) the body of the while loop is executed just once c) the body of the while loop is executed more than once e) all of these f) exiting the loop in the middle of the body

Can this be completed using a while loop at least once or twice

This program in C++ obtains a series of letter grades as input from a user. The program should calculate and output the total grade points and the grade point average (note: you may have to track the total number of inputs and the grade points to calculate the grade point average). The algorithm should execute 3 times for testing purposes.Use the appropriate loop for the main structure of the program that will stop accepting letter grades when the user inputs X. Also, choose the appropriate selection statement to convert the letter grade to the correct grade points.Additional Requirements:• Use appropriate data types and variable names throughout the code.• Use constants appropriately. Output needs to look like the image below.

In C#

C++