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

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

by Julie Anderson, Herve J. Franceschi
February 2008
Intermediate to advanced content levelIntermediate to advanced
1288 pages
39h 39m
English
Jones & Bartlett Learning
Content preview from Java 6 Illuminated: An Active Learning Approach, 2nd Edition
258 CHAPTER 5 Flow of Control,Part 1: Selection
Figure 5.24
The Calculator with an
Invalid Entry for the
Operation
Welcome to the Calculator
Enter the first operand: 52
Enter the second operand: 34.5
Operations are:
A for addition
S for subtraction
M for multiplication
D for division
Enter your selection: f
f is not valid.
use the next method of the Scanner class, which returns a String. We then
extract just the first character of the String (via the charAt method of the
String class) to produce a char to use as our switch variable.
One more note on the calculator. We need to check whether the divisor is 0
before performing division (line 60). Although we discussed ...
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Publisher Resources

ISBN: 9780763749637