RequirePackage[utf8]{inputenc}
RequirePackage[T1]{fontenc}
RequirePackage{lmodern,textcomp}
RequirePackage{microtype}
RequirePackage[ngerman]{babel}
RequirePackage{ae,pifont}
Requirepackage{courier}

% ...

usepackage{listings}
lstloadlanguages{
    [Visual]Basic,
    Pascal,
    C,
    [ISO]C++,
    XML,
    HTML,
    Java,
    bash
}
lstset{
    breakatwhitespace=false,
    upquote=true,
    keepspaces=true,
    language=Java,
    numbers=none,
    numbersep=5pt,
    tabsize=2,
    extendedchars=true,
    breaklines=true,
    basicstyle=scriptsizettfamilycolor{basicStyleColor},
    identifierstyle=color{identifierStyleColor},
    keywordstyle=[1]color{keywordStyle1Color},
    keywordstyle=[2]color{keywordStyle2Color},
    keywordstyle=[3]color{keywordStyle3Color},
    stringstyle=color{stringStyleColor},
    commentstyle=itshapecolor{commentStyleColor},
    numberstyle=tinycolor{commentStyleColor},
    rulecolor=color{black},
    showspaces=false,
    showtabs=false,
    xleftmargin=17pt,
    frame=none,
    framexleftmargin=17pt,
    %framexrightmargin=5pt,
    framexbottommargin=4pt,
    %backgroundcolor=color{lightgray},
    showstringspaces=false,
      {á}{{'a}}1 {é}{{'e}}1 {í}{{'i}}1 {ó}{{'o}}1 {ú}{{'u}}1
      {Á}{{'A}}1 {É}{{'E}}1 {Í}{{'I}}1 {Ó}{{'O}}1 {Ú}{{'U}}1
      {à}{{`a}}1 {è}{{`e}}1 {ì}{{`i}}1 {ò}{{`o}}1 {ù}{{`u}}1
      {À}{{`A}}1 {È}{{'E}}1 {Ì}{{`I}}1 {Ò}{{`O}}1 {Ù}{{`U}}1
      {ä}{{"a}}1 {ë}{{"e}}1 {ï}{{"i}}1 {ö}{{"o}}1 {ü}{{"u}}1
      {Ä}{{"A}}1 {Ë}{{"E}}1 {Ï}{{"I}}1 {Ö}{{"O}}1 {Ü}{{"U}}1
      {â}{{^a}}1 {ê}{{^e}}1 {î}{{^i}}1 {ô}{{^o}}1 {û}{{^u}}1
      {Â}{{^A}}1 {Ê}{{^E}}1 {Î}{{^I}}1 {Ô}{{^O}}1 {Û}{{^U}}1
      {œ}{{oe}}1 {Œ}{{OE}}1 {æ}{{ae}}1 {Æ}{{AE}}1 {ß}{{ss}}1
      {ű}{{H{u}}}1 {Ű}{{H{U}}}1 {ő}{{H{o}}}1 {Ő}{{H{O}}}1
      {ç}{{c c}}1 {Ç}{{c C}}1 {ø}{{o}}1 {å}{{r a}}1 {Å}{{r A}}1
      {€}{{euro}}1 {£}{{pounds}}1 {«}{{guillemotleft}}1
      {»}{{guillemotright}}1 {ñ}{{~n}}1 {Ñ}{{~N}}1 {¿}{{?`}}1
      {€}{{texteuro}}1
}

documentclass[12pt]{mystyle}

usepackage{ulem}
usepackage{enumerate}

begin{document}
    sloppy

begin{lstlisting}
import akka.actor.{ActorSystem, Props}

object Main extends App {
}
end{lstlisting}