Java™ How to Program, Seventh Edition

5.2. Essentials of Counter-Controlled Repetition

This section uses the while repetition statement introduced in Chapter 4 to formalize the elements required to perform counter-controlled repetition. Counter-controlled repetition requires

1. a control variable (or loop counter)

2. the initial value of the control variable

3. the increment (or decrement) by which the control variable is modified each time through the loop (also known as each iteration of the loop)

4. the loop-continuation condition that determines whether looping should continue.

To see these elements of counter-controlled repetition, consider the application of Fig. 5.1, which uses a loop to display the numbers from 1 through 10. Note that Fig. 5.1 contains only one method, main, which does ...