Learning to Program in C++

While We're on the Subject

The while statement is another way of affecting the order of program execution. This conditional statement executes the statement under its control as long as a certain condition is true. Such potentially repeated execution is called a loop; a loop controlled by a while statement is called, logically enough, a while loop. Figure 3.23 is a program that uses a while loop to challenge the user to guess a secret number from 0–9, and keeps asking for guesses until the correct answer is entered.

Figure 3.23. Using a while statement (code\basic04.cc)

There are a few wrinkles here that we haven't seen before. Although the ...