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Contents of the Book

• Preface
• Prelude: A Taste of Scala
• The Scala Programming Language
• Hello, World
• Hello, World (Version 2)
• The Scala REPL
• Two Types of Variables
• The Type is Optional
• A Few Built-In Types
• Two Notes About Strings
• Command-Line I/O
• Control Structures
• The if/then/else Construct
• for and while Loops
• for Expressions
• match Expressions
• try/catch/finally Expressions
• Classes
• Auxiliary Class Constructors
• Supplying Default Values for Constructor Parameters
• A First Look at Methods
• Enumerations (and a Complete Pizza Class)
• Traits and Abstract Classes
• Using Traits as Interfaces
• Using Traits Like Abstract Classes
• Abstract Classes
• Collections Classes
• ArrayBuffer Class

Book Description

‘Hello, Scala’ is a breath of fresh air for anyone eyeing the world of functional programming. Alvin Alexander knows how intimidating new languages can be, so he keeps things light and friendly. This free PDF preview covers the first 120 pages, which is more than enough to get your feet wet in Scala without feeling overwhelmed. You’ll find clear explanations, relatable examples, and even a dash of humorbecause learning should be fun, right? If you’ve ever wondered what makes Scala so popular among developers, this sneak peek might just have your answer.

Book Overview

Scala has a reputation for being powerful yet approachablewhen taught well. That’s what sets ‘Hello, Scala’ apart. The preview guides you through core concepts like variables, functions, and collections with real-world examples that actually make sense. There’s no jargon overload or confusing leaps. Instead, Alexander walks you through each step with patience and clarity. If you’ve explored other resources like Essential Scala, you’ll notice this book takes a more conversational route. It’s perfect for those who want to dip their toes in before diving deeper.

Why Read This Book

Why pick up ‘Hello, Scala’? Simple: it makes learning fun and accessible. You won’t feel lost or boredeven if you’ve never written a line of code before. The author’s personal stories and quirky analogies keep things lighthearted (seriously, who knew programming could make you laugh?). Plus, if you’re already familiar with other books like Functional Programming, Simplified, you’ll appreciate how this one fills in the gaps for beginners. If you’ve ever rolled your eyes at dry technical manuals (haven’t we all?), you’ll love the refreshing approach here.

Who This Book Is For

Are you curious about programming but not sure where to start? Or maybe you’re already coding in another language and want to try something new? ‘Hello, Scala’ is written for beginners and experienced coders alike. Teachers will find it useful for introducing students to functional concepts without scaring them off. Hobbyists will enjoy the relaxed pace and relatable examples. If you’re someone who likes to learn by doing (and laughing), this book is definitely for you.

What You Will Learn

• The basics of Scala syntax and structure
• How to write simple programs using real-world examples
• Core concepts like variables, functions, and collections
• The difference between object-oriented and functional programming
• Troubleshooting tips for common beginner mistakes
• Practical ways to apply Scala in everyday projects
• Why thinking functionally can change how you solve problems
• A sneak peek into more advanced topics (without feeling lost!)

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