December 2011
Intermediate to advanced
623 pages
18h 30m
English
Content preview from Java For Everyone: Compatible with Java 5, 6, and 7, 2nd EditionDECISIONS
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CHAPTER 3
DECISIONS 
CHAPTER GOALS
To implement decisions using if statements
To compare integers, floating-point numbers, and strings
To write statements using the Boolean data type
To develop strategies for testing your programs
To validate user input
CHAPTER CONTENTS
Programming Tip 3.1: Brace Layout
Programming Tip 3.2: Always Use Braces
Common Error 3.1: A Semicolon After the if Condition
Special Topic 3.1: The Conditional Operator
Programming Tip 3.4: Avoid Duplication in Branches
3.2 COMPARING NUMBERS AND STRINGS
Common Error 3.2: Exact Comparison of Floating-Point Numbers
Common Error 3.3: Using == to Compare Strings
Special Topic 3.2: Lexicographic Ordering of Strings
How To 3.1: Implementing an if Statement
Worked Example 3.1: Extracting the Middle 
Random Fact 3.1: The Denver Airport Luggage Handling System
Special Topic 3.3: The switch Statement
Programming Tip 3.5: Hand-Tracing
Common Error 3.4: The Dangling else Problem
Special Topic 3.4: Enumeration Types
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.