The document discusses reasons for using the Scala programming language, including its support for functional programming concepts like map, filter, and fold; functions as first-class citizens; lambda functions and closures; and parallel collections. It also notes Scala's integration of object-oriented and functional paradigms, static typing with duck typing, interoperability with Java, and more concise code. Links are provided to Scala code examples and resources.

1. @diego_pacheco
Software Architect | Agile Coach
about.me/diegopacheco 1

2. Why Scala?
 Functional Programming (map, filter, foldLeft, foldRight, flatMap, etc..)
 Functions as First Class Citizen
2001 - EPFL
 Lambda/Closure
 Higher Order Functions, Currying and monads
 Parallel Collections (for multi-core processors)
 Evolutionary OO (case class, object, trait, pattern matcher, with*)
 You can use same jars/frameworks (Spring, Hibernate, Junit, etc..)
 Solid Documentation, Books, websites, blogs, community, twitter, etc…
 Static Typing BUT Scala has Duck Typing
 Runs on the JVM Java 1.3 - 2000
 Awesome interoperability with Java NEW Javac 1/3
 Same java tooling – Eclipse – Scala IDE (Not Perfect ) smaller
 Less noise, do more with less code than Java (LOC x2) Generics, Right?
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Martin Odersky

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4. Scala Code: @Bean Property
https://github.com/diegopacheco/Diego-Pacheco-Sandbox/blob/master/scripts/scala/scala-
playground/src/com/github/diegopacheco/sandbox/scripts/scala/basic/bean2short.scala
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5. Scala Code: case classes
https://github.com/diegopacheco/Diego-Pacheco-Sandbox/blob/master/scripts/scala/scala-
playground/src/com/github/diegopacheco/sandbox/scripts/scala/caseclass/CaseClass.scala
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6. https://github.com/diegopacheco/Diego-Pacheco-Sandbox/blob/master/scripts/scala/scala-
playground/src/com/github/diegopacheco/sandbox/scripts/scala/basic/loop/MoreAdvancedFunWithForExpression.scala
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7. Scala Code: Operator Overload
https://github.com/diegopacheco/Diego-Pacheco-Sandbox/blob/master/scripts/scala/scala-
playground/src/com/github/diegopacheco/sandbox/scripts/scala/basic/oo/MathOverload.scala
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8. Scala Code: Functional Programming
https://github.com/diegopacheco/Diego-Pacheco-Sandbox/blob/master/scripts/scala/scala-
playground/src/com/github/diegopacheco/sandbox/scripts/scala/basic/reduce.scala
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9. Scala Code: Traits & Mixings
https://github.com/diegopacheco/Diego-Pacheco-Sandbox/blob/master/scripts/scala/scala-
playground/src/com/github/diegopacheco/sandbox/scripts/scala/basic/oo/traits/SelectiveTraits.scala
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10. Scala Code: Lambda/Closure
https://github.com/diegopacheco/Diego-Pacheco-Sandbox/blob/master/scripts/scala/scala-
playground/src/com/github/diegopacheco/sandbox/scripts/scala/clojure/AnonymousFunction.scala
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11. Scala Code: Currying
https://github.com/diegopacheco/Diego-Pacheco-Sandbox/blob/master/scripts/scala/scala-
playground/src/com/github/diegopacheco/sandbox/scripts/scala/currying/CurryingFunctions.scala
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12. Scala Code: Currying
https://github.com/diegopacheco/Diego-Pacheco-Sandbox/blob/master/scripts/scala/scala-
playground/src/com/github/diegopacheco/sandbox/scripts/scala/currying/CurryingFunctions.scala
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13. Scala Code: Specs2
https://github.com/diegopacheco/Diego-Pacheco-Sandbox/blob/master/scripts/scala/scala-
playground/src/com/github/diegopacheco/sandbox/scripts/scala/specs2/Specs2.scala
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14. Scala Code: Pattern Matcher
https://github.com/diegopacheco/Diego-Pacheco-Sandbox/blob/master/scripts/scala/scala-
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playground/src/com/github/diegopacheco/sandbox/scripts/scala/pattern/matching/PatternMatching.scala

15. Scala Code: DSL
https://github.com/diegopacheco/Diego-Pacheco-Sandbox/blob/master/scripts/scala/scala-
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playground/src/com/github/diegopacheco/sandbox/scripts/scala/typesystem/implicits/ImplicitsConversions.scala

16. Resources
http://www.scala-lang.org/
http://twitter.github.com/scala_school/
http://scalatypes.com/
http://akka.io/
http://typesafe.com/
https://github.com/diegopacheco/Diego-Pacheco-
Sandbox/tree/master/scripts/scala
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17. More…
https://github.com/diegopacheco/functional-society
http://www.twitter.com/funcsociety 17

18. Thanks!
Obrigado!
@diego_pacheco
Software Architect | Agile Coach
about.me/diegopacheco 18