Application errors expose a lot of information about the code and its environment.

What is the purpose of a relational operator in C++?

A. It is used with pointers to access addresses. B. It is needed to do comparisons between variables. C. The cout statement must have relational operator(s). D. The program uses it to assign values to variables.

When should a programmer select a do while loop for his or her program?

A. When he or she knows the exact number of times the loop will be executed. B. When he or she is not sure how many times the loop will be executed. C. When he or she knows the loop must be executed at least once. D. There is no reason to select a do while loop. Any loop can be used any time.