Java 6 Illuminated: An Active Learning Approach, 2nd Edition

234 CHAPTER 5 Flow of Control,Part 1: Selection

Figure 5.11

Output from the

GuessANumber Program

in Example 5.6

I'm thinking of a number between 1 and 10. What is your guess? 2

The number was 10

You missed it by a mile!

Better luck next time.

On line 34, we used the abs method of the Math class to determine

whether the guess was within three integers of the secret number. By

taking the absolute value of the difference between the guess and the

secret number, we don’t need to worry about which number is higher

than the other; we will always receive a positive difference from the abs

method.

Figure 5.11 shows the output of a sample run of this program.

5.6