<eivindw/>

This is a draft of my “Introduction to Scala” presentation, to be used at the BEKK “fagdag” in September. The presentation is written using LaTeX and Beamer. Feel free to comment on errors or improvements

The presentation is available on scribd.com:

• http://www.scribd.com/doc/17103148/Introduction-to-Scala

Cannot view the presentation? The whole file can be downloaded as PDF here:

• Introduction to Scala

Note! I will update the presentation when I find errors or make other changes.

To get LaTeX Listings to work for Scala I ended up with the following definition in my .tex file:

\usepackage{listings}

% "define" Scala
\lstdefinelanguage{scala}{
  morekeywords={abstract,case,catch,class,def,%
    do,else,extends,false,final,finally,%
    for,if,implicit,import,match,mixin,%
    new,null,object,override,package,%
    private,protected,requires,return,sealed,%
    super,this,throw,trait,true,try,%
    type,val,var,while,with,yield},
  otherkeywords={=>,<-,<\%,<:,>:,\#,@},
  sensitive=true,
  morecomment=[l]{//},
  morecomment=[n]{/*}{*/},
  morestring=[b]",
  morestring=[b]',
  morestring=[b]"""
}

NOTE! After writing this I came across this page (with a downloadable style file), which is probably preferred to adding the definition to every single .tex document.

To add a nice IntelliJ-like color/look & feel and a border I added the following configuration:

\usepackage{color}
\definecolor{dkgreen}{rgb}{0,0.6,0}
\definecolor{gray}{rgb}{0.5,0.5,0.5}
\definecolor{mauve}{rgb}{0.58,0,0.82}

% Default settings for code listings
\lstset{frame=tb,
  language=scala,
  aboveskip=3mm,
  belowskip=3mm,
  showstringspaces=false,
  columns=flexible,
  basicstyle={\small\ttfamily},
  numbers=none,
  numberstyle=\tiny\color{gray},
  keywordstyle=\color{blue},
  commentstyle=\color{dkgreen},
  stringstyle=\color{mauve},
  frame=single,
  breaklines=true,
  breakatwhitespace=true
  tabsize=3
}

Using the listings is then straightforward:

\begin{lstlisting}
val t = "hello" // a string
val x = 42 // an int
\end{lstlisting}

Resulting in the following pretty formatted code example in a Beamer presentation: