\usepackage{listings}
\usepackage{xcolor}
\usepackage{fontspec}
\setmonofont[Scale=MatchLowercase]{Consolas}
\newfontfamily{\consolas}{Consolas}

\setmonofont{Consolas}
\definecolor{javared}{rgb}{0.6,0,0} % for strings
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\definecolor{javapurple}{rgb}{0.5,0,0.35} % keywords
\definecolor{javadocblue}{rgb}{0.25,0.35,0.75} % javadoc

\lstset{language=Java,
	basicstyle=\ttfamily,
	keywordstyle=\color{javapurple}\bfseries,
	stringstyle=\color{javagreen},
	commentstyle=\color{javagreen},
	morecomment=[s][\color{javadocblue}]{/**}{*/},
	numbers=left,
	numberstyle=\tiny\color{black},
	stepnumber=1,
	numbersep=10pt,
	tabsize=2,
	showspaces=false,
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\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]{//},
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  morestring=[b]',
  morestring=[b]"""
}


\lstset{language=Scala,
	basicstyle=\ttfamily,
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	stringstyle=\color{javagreen},
	commentstyle=\color{javagreen},
	morecomment=[s][\color{javadocblue}]{/**}{*/},
	numbers=left,
	numberstyle=\tiny\color{black},
	stepnumber=1,
	numbersep=10pt,
	tabsize=2,
	showspaces=false,
	showstringspaces=false}

\lstdefinelanguage{while}{
  morekeywords={if,then,else,while,do,true,false,write,upto,for,skip},
  otherkeywords={=,!=,:=,<,>,;},
  sensitive=true,
  morecomment=[n]{/*}{*/},
}


\lstset{language=While,
	basicstyle=\ttfamily,
	keywordstyle=\color{javapurple}\bfseries,
	stringstyle=\color{javagreen},
	commentstyle=\color{javagreen},
	morecomment=[s][\color{javadocblue}]{/**}{*/},
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	showspaces=false,
	showstringspaces=false}