The Scala Programming Language

5 Day Course
Hands On
Code QASCALA

This course has been retired. Please view currently available Object Orientation Training Courses.

Modules

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Introduction (16 topics)

  • Why scala?
  • Libraries
  • Static typing
  • Compositional syntax
  • OO
  • Functional
  • Powerful
  • Paradigms
  • OO
  • Functional
  • Running scala
  • Anatomy of scala programs
  • Try the repl
  • Scalac
  • Scala interpreter
  • Sbt

Fundamentals (15 topics)

  • Language
  • Objects
  • Calling methods
  • Operators as methods
  • Values and variables
  • Types
  • Basic types
  • Boolean
  • Numeric types
  • Unit
  • Strings
  • String methods
  • Introduction to collections
  • Type arguments
  • Tuples, Lists, Maps

Flow (15 topics)

  • Branching, matching & selecting
  • Conditionals
  • Intro to pattern matching
  • Destructuring
  • For comprehensions
  • Yield vs Unit
  • Comprehensions over lists
  • Comprehensions over maps
  • Comprehensions over ranges
  • Option
  • Multiple extraction
  • Guards
  • Ranges
  • Let expressions
  • While loops

Methods (10 topics)

  • Code blocks
  • Methods
  • Method bodies
  • Returning unit
  • Passing arguments
  • Variadics
  • Def vs val
  • Lazy vals
  • Lazy arguments
  • Recursion

Functions (9 topics)

  • What Is Functional Programming?
  • Pure Functions
  • Functions
  • The Function Type
  • 'Function' vs Method
  • Higher Order Functions
  • Functions as Data
  • Currying
  • Aside: Type Aliases

Collections (15 topics)

  • Review: types
  • Collections heirachy
  • Creating collections
  • Range
  • Array & array buffer
  • List & list buffer
  • Vector
  • Maps
  • Sets
  • Empty
  • Idioms
  • Pattern matching
  • For comprehnsions review
  • Zipping
  • Traits

Transformation (16 topics)

  • Streams
  • Combinators
  • .map & .flatMap
  • Folding & Reducing
  • .exists and .forall
  • Option
  • For comprehensions
  • Foreach & Flatmap
  • Pattern matching
  • Review
  • Casting
  • Sequences
  • For-yield-match
  • Regex
  • Guards
  • Option

OO (16 topics)

  • Classes
  • Reading class definitions
  • Defining classes
  • Constructors
  • Properties
  • Method overloading
  • Java inspection of scala classes
  • Getters and setters
  • Operator methods
  • Objects
  • The object keyword
  • Companions
  • The mechanism of pattern matching
  • Case classes
  • Pattern matching with case classes
  • Aside: case objects

Inheritance (14 topics)

  • Inheritance: a type relation
  • Inheritance: class relationship
  • Overriding methods
  • Overriding tostring
  • Calling the parent method
  • Abstracts
  • Traits
  • Trait inheritance
  • Composing objects with traits
  • The meaning of super
  • Traits as mixins
  • Self types
  • Cake pattern
  • Aside: type members

Design (16 topics)

  • Imports
  • Package objects
  • Algebra
  • Algebraic data types: defining
  • Algebraic data types
  • Example: document store
  • Tuples types
  • Generics
  • Type arguments
  • Variance
  • Special types
  • Option
  • Example: user data
  • Bad: exceptions
  • Try
  • Either

SBTest (15 topics)

  • Simple build tool
  • Build files
  • Creating a project
  • Dependencies
  • Project structure
  • Running tests
  • Sbt task runner
  • Testing
  • Type systems as tests
  • Using type systems
  • Assertions
  • Scala test
  • Flatspec
  • Featurespec
  • Matchers

Implicits (12 topics)

  • Implicit conversions
  • Implicit conversions: def
  • Implicit conversions: implicit classes
  • Implicit parameters
  • Contexts
  • Scoping
  • Type classes
  • Typeclasses with implicit classes
  • Without typeclasses
  • Typeclasses: generalizing
  • Typeclasses: implicit objects
  • Typeclasses: multiple instances

HigherKinds (12 topics)

  • Review: Polymorphism
  • Review: Typeclasseses: Monoid
  • Scalaz
  • Sbt for Scalaz
  • Simple Typeclass: Equal
  • Simple Typeclass: Order
  • Simple Typeclass: Implementing Equal
  • Kinds
  • Higher-kinded Types: Functor
  • Generalizing Functor
  • Higher-kinded Types: Applicative
  • Monads

Appendix (2 topics)

  • Concurrency
  • Libraries

Prerequisites

Delegates must have prior programming experience in java or a related object-oriented language.

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