Beginning Programming with Java For Dummies, 5th Edition

Chapter 12

Around and Around It Goes

IN THIS CHAPTER

Creating program loops

Formulating solutions to problems with loops

Diagnosing loop problems

Chapter 8 has code to reverse the letters in a four-letter word that the user enters. In case you haven’t read Chapter 8 or you just don’t want to flip to it, here’s a quick recap of the code:

c1 = keyboard.findWithinHorizon(".",0).charAt(0);c2 = keyboard.findWithinHorizon(".",0).charAt(0);c3 = keyboard.findWithinHorizon(".",0).charAt(0);c4 = keyboard.findWithinHorizon(".",0).charAt(0); System.out.print(c4);System.out.print(c3);System.out.print(c2);System.out.print(c1);

The code is just dandy for words with exactly four letters, but how do you reverse a five-letter word? As the code stands, you have to add two new statements:

c1 = keyboard.findWithinHorizon(".",0).charAt(0);c2 = keyboard.findWithinHorizon(".",0).charAt(0);c3 = keyboard.findWithinHorizon(".",0).charAt(0);c4 = keyboard.findWithinHorizon(".",0).charAt(0);c5 = keyboard.findWithinHorizon(".",0).charAt(0); System.out.print(c5);System.out.print(c4);System.out.print(c3);System.out.print(c2);System.out.print(c1);

What a drag! You add statements to a program whenever the size of ...