Summary

Tindr Solutions Inc., in partnership with Typesafe, is pleased to offer a two-day course, designed by Martin Odersky, the creator of the Scala programming language, and Heiko Seeberger, a recognized Scala expert, with a goal of giving you an excellent grounding in Scala.

It is intended to enable developers or development managers, who are experienced programmers in Java or other production languages like C++, C# or Ruby, to confidently start programming in Scala. No previous knowledge of Scala is assumed. Although intense, the course ensures you will have a solid understanding of the fundamentals of the language, the tooling and the development process as well as a good appreciation of the more advanced features. If you already have Scala programming experience, then this course could be a useful refresher.

Objectives

After having participated in this course you should:

• be a competent user of Scala constructs in application code
• know and be able to apply the functional programming style in Scala
• know how to use the fundamental Scala tools
• be confident to start using Scala in production applications

Trainer

Jamie Allen is a consultant and trainer for Typesafe with over 18 years of experience delivering enterprise solutions across myriad industries, platforms, environments and languages. A believer in the polyglot credo of using the right tool for the right task, he has a wealth of development experience with languages including COBOL, C/C++, Ruby and Java. Jamie has been developing enterprise applications with Scala since 2009, primarily using Actors for fault tolerance and managing concurrency at scale.

Prerequisites 

The presentation will frequently be mixed with hands-on exercises that give you a good opportunity to try what you have learnt and a chance to clarify your understanding.  A laptop per participant is required as the training facility will not provide workstations. 

Outline

Introduction

Setting up the development environment

First steps

• Interactive programming in the REPL
• Variables and methods
• Expressions and type inference
• First glance at functions

OO Basics

• Classes, class parameters, constructors
• Fields, class parameters as fields
• Methods
• Operators
• Named and default arguments
• Packages and imports
• Access modifiers
• Singleton objects, companions, Predef
• Case classes

Testing in Scala

• SBT managed dependencies
• Test-driven development with triggered test (~test)
• Testing with specs2

Collections and functional programming

• Collection hierarchy, creating instances
• Type parameters
• Tuples
• Immutability versus mutability
• Some important collection methods
• Higher-order functions and function literals
• Functions values, function types, short notation
• Important higher order functions: map, flatMap and filter

For-expressions and for-loops

• Generators
• Filters
• Definitions
• Translation of for-expressions and -loops

Inheritance and traits 

• Extending classes
• Final and sealed classes
• Enumerations
• Overriding members
• Abstract classes
• Implementing abstract members
• Standard type hierarchy
• Traits and mix-in composition

Pattern Matching 

• Match-expressions
• Pattern types
• Pattern guards
• Patterns outside of match expressions

Dealing with optional values