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\documentclass[dvipsnames,14pt,t,xelatex]{beamer}
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\usepackage{../slides}
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\usepackage{../graphics}
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\usepackage{../langs}
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%\usepackage{../data}
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\hfuzz=220pt
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%\setmonofont[Scale=.88]{Consolas}
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%\newfontfamily{\consolas}{Consolas}
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\lstset{language=Scala,
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style=mystyle,
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numbersep=0pt,
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numbers=none,
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xleftmargin=0mm}
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\newcommand{\bl}[1]{\textcolor{blue}{#1}}
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% beamer stuff
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\renewcommand{\slidecaption}{PEP (Scala) 02, King's College London}
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\begin{document}
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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\begin{frame}[t]
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\frametitle{%
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\begin{tabular}{@ {}c@ {}}
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\\[5mm]
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\huge PEP Scala (2)
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\end{tabular}}
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\normalsize
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\begin{center}
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\begin{tabular}{ll}
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Email: & christian.urban at kcl.ac.uk\\
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Office: & S1.27 (1st floor Strand Building)\\
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Slides \& Code: & KEATS
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\end{tabular}
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\end{center}
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\end{frame}
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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\begin{frame}[t]
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\frametitle{\begin{tabular}{c}Why Scala?\end{tabular}}
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\begin{itemize}
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\item \large {\bf You can avoid \textcolor{blue}{\texttt{null}}}:
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\end{itemize}
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\begin{textblock}{6}(1,5)
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\begin{bubble}[10.5cm]\small
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``I call it my billion-dollar mistake. It was the invention of
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the null reference in 1965. At that time, I was designing the
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first comprehensive type system for references in an object
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oriented language (ALGOL W). My goal was to ensure that all use
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of references should be absolutely safe, with checking performed
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automatically by the compiler. But I couldn't resist the
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temptation to put in a null reference, simply because it was so
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easy to implement. This has led to innumerable errors,
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vulnerabilities, and system crashes, which have probably caused
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a billion dollars of pain and damage in the last forty years.''
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\hfill Sir Tony (Hoare)
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\end{bubble}
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\end{textblock}
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\begin{textblock}{5}(11.8,1)
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\includegraphics[scale=0.20]{hoare.jpg}\\
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\end{textblock}
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\end{frame}
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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\begin{frame}[c]
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\frametitle{\huge\textbf{\texttt{return}}}
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\begin{center}\LARGE
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you should never use it
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\end{center}
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\end{frame}
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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\begin{frame}[c]
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\frametitle{Types}
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\begin{itemize}
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\item Base types\smallskip
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\begin{tabular}{@{}l@{}}
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\textcolor{codegreen}{\texttt{Int}},
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\textcolor{codegreen}{\texttt{Long}},
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\textcolor{codegreen}{\texttt{BigInt}},
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\textcolor{codegreen}{\texttt{Float}},
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\textcolor{codegreen}{\texttt{Double}}\\
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\textcolor{codegreen}{\texttt{String}},
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\textcolor{codegreen}{\texttt{Char}}\\
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\textcolor{codegreen}{\texttt{Boolean}}
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\end{tabular}
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\item Compound types \smallskip
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\begin{tabular}{@{}ll@{}}
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\textcolor{codegreen}{\texttt{List[Int]}} & lists of Int's \\
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\textcolor{codegreen}{\texttt{Set[Double]}} & sets of Double's \\
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\textcolor{codegreen}{\texttt{(Int, String)}} & Int-String pair\\
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\textcolor{codegreen}{\texttt{List[(BigInt, String)]}} &
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lists of BigInt-String\\
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& pairs\\
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\textcolor{codegreen}{\texttt{List[List[Int]]}} & list of lists of Int's\\
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\end{tabular}
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\end{itemize}
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\end{frame}
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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\begin{frame}[c]
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\frametitle{\begin{tabular}{c}\\[3cm]\alert{Questions?}\end{tabular}}
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\mbox{}
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\end{frame}
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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\end{document}
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\end{document}
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%%% Local Variables:
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%%% mode: latex
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%%% TeX-master: t
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%%% End:
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