13 \begin{document} |
13 \begin{document} |
14 |
14 |
15 \section*{A Crash-Course on Scala} |
15 \section*{A Crash-Course on Scala} |
16 |
16 |
17 Scala is a programming language that combines functional and |
17 Scala is a programming language that combines functional and |
18 object-oriented programming-styles. It has received quite a |
18 object-oriented programming-styles. It has received quite a bit of |
19 bit of attention in the last five years or so. One reason for |
19 attention in the last five or so years. One reason for this attention |
20 this attention is that, like the Java programming language, |
20 is that, like the Java programming language, Scala compiles to the |
21 Scala compiles to the Java Virtual Machine (JVM) and therefore |
21 Java Virtual Machine (JVM) and therefore Scala programs can run under |
22 Scala programs can run under MacOSX, Linux and |
22 MacOSX, Linux and Windows.\footnote{There are also experimental |
23 Windows.\footnote{There are also experimental backends for |
23 backends for Android and JavaScript; and also work is under way to |
24 Android and JavaScript; and also work is under way to have a |
24 have a native compiler, see |
25 native compiler, see \url{https://github.com/scala-native/scala-native}.} Unlike Java, however, Scala often |
25 \url{https://github.com/scala-native/scala-native}.} Unlike Java, |
26 allows programmers to write very concise and elegant code. |
26 however, Scala often allows programmers to write very concise and |
27 Some therefore say: Scala is the much better Java. A number of |
27 elegant code. Some therefore say: ``Scala is the better |
28 companies, The Guardian, Twitter, Coursera, FourSquare, |
28 Java''.\footnote{\url{https://www.slideshare.net/maximnovak/joy-of-scala}} |
29 LinkedIn to name a few, either use Scala exclusively in |
29 Also a number of companies (the Guardian, Twitter, Coursera, |
30 production code, or at least to some substantial degree. It |
30 FourSquare, LinkedIn to name a few) either use Scala exclusively in |
31 also seems to be useful in job-interviews (in Data Science) |
31 production code, or at least to some substantial degree. Scala seems |
32 according to this annectotical report |
32 also to be useful in job-interviews (in Data Science) according to |
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33 this anecdotal report |
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34 |
33 |
35 |
34 \begin{quote} |
36 \begin{quote} |
35 \url{https://techcrunch.com/2016/06/14/scala-is-the-new-golden-child/} |
37 \url{https://techcrunch.com/2016/06/14/scala-is-the-new-golden-child/} |
36 \end{quote} |
38 \end{quote} |
37 |
39 |
46 \noindent |
48 \noindent |
47 A ready-made bundle with the Eclipse IDE is at |
49 A ready-made bundle with the Eclipse IDE is at |
48 |
50 |
49 \begin{quote} |
51 \begin{quote} |
50 \url{http://scala-ide.org/download/sdk.html} |
52 \url{http://scala-ide.org/download/sdk.html} |
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53 \end{quote} |
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54 |
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55 \noindent |
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56 When developing Scala programs, I personally prefer to use Emacs |
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57 or Sublime as my environment, since they provide an easy access |
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58 to the Scala REPL (see below). But it is also possible to work |
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59 completely on the command line and also with heavy-duty IDEs |
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60 like Eclipse of IntelliJ. There is even an online editor and |
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61 environment for developing Scala programs called ScalaFiddle |
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62 |
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63 \begin{quote} |
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64 \url{https://scalafiddle.io} |
51 \end{quote} |
65 \end{quote} |
52 |
66 |
53 Why do I use Scala in the AFL module? Actually, you can do |
67 Why do I use Scala in the AFL module? Actually, you can do |
54 \emph{any} part of the coursework in \emph{any} programming |
68 \emph{any} part of the coursework in \emph{any} programming |
55 language you like. I use Scala for showing you code during the |
69 language you like. I use Scala for showing you code during the |