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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) 01, 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 (1)
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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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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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\begin{frame}[c]
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\frametitle{Why Scala?}
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\begin{textblock}{6}(3,4)
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\begin{tabular}{l}
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\mbox{}\hspace{-1mm}\includegraphics[scale=0.36]{../pics/twitter.png}\\[-1mm]
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\includegraphics[scale=0.30]{../pics/linked.png}\\
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\includegraphics[scale=0.30]{../pics/guardian.jpg}\\[-3mm]
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\mbox{}\hspace{-2mm}\includegraphics[scale=0.38]{../pics/morgan.png}\\[-3mm]
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\includegraphics[scale=0.30]{../pics/suisse.png}\\
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{\large\bf ...}
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\end{tabular}
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\end{textblock}
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\begin{textblock}{6}(9,4)
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\begin{tabular}{l}
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\includegraphics[scale=0.20]{../pics/edf.png}\\[-1mm]
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\includegraphics[scale=0.08]{../pics/novell.png}\\[-1mm]
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\includegraphics[scale=0.30]{../pics/foursquare.png}\\
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\includegraphics[scale=0.30]{../pics/hsbc.png}\\
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{\large\bf ...}
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\end{tabular}
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\end{textblock}
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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{Why Scala?}
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\begin{itemize}
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\item compiles to the JVM\\
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\textcolor{gray}{(also JavaScript, native X86 in the works)}\medskip
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\item integrates seamlessly with Java\medskip
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\item combines \underline{\bf functional} and {\bf object-oriented} programming\bigskip
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\item it is a bit on the ``mathematical'' side\\
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\textcolor{gray}{(no pointers, no \texttt{null})}
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\item often one can write very concise and elegant code
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\end{itemize}\bigskip\medskip
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\small
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alternatives: Elm, Haskell, Ocaml, ML, Lisp (Racket), \ldots
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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{Java vs Scala}
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{\lstset{language=java}\fontsize{12}{12}\selectfont
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\texttt{\lstinputlisting{Point.java}}}
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\rule{11cm}{0.3mm}\\[-2mm]
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{\lstset{language=scala}\fontsize{12}{12}\selectfont
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\texttt{\lstinputlisting{Point.scala}}}
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\begin{textblock}{6}(13,3)
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\textbf{\large Java}
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\end{textblock}
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\begin{textblock}{6}(13,13.4)
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\textbf{\large Scala}
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\end{textblock}
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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{Scala Tools}
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\begin{itemize}
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\item there is a plugin for Eclipse (called Scala IDE)\medskip
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\item there is also a plugin for IntelliJ\bigskip
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\item I use the venerable Emacs ;o)
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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{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{An Http Request}
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\begin{textblock}{1}(2,5)
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\begin{tabular}{c}
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\includegraphics[scale=0.15]{../pics/servers.png}\\[-2mm]
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\small Server
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\end{tabular}
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\end{textblock}
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\begin{textblock}{1}(5.6,4)
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\begin{tikzpicture}[scale=1.1]
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\draw[white] (0,1) node (X) {};
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\draw[white] (2,1) node (Y) {};
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\draw[white] (0,0) node (X1) {};
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\draw[white] (2,0) node (Y1) {};
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\draw[white] (0,-1) node (X2) {};
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\draw[white] (2,-1) node (Y2) {};
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\draw[red, <-, line width = 2mm] (X) -- (Y);
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\node [inner sep=5pt,label=above:\textcolor{black}{GET request}] at ($ (X)!.5!(Y) $) {};
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\draw[red, ->, line width = 2mm] (X1) -- (Y1);
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\node [inner sep=5pt,label=above:\textcolor{black}{webpage}] at ($ (X1)!.5!(Y1) $) {};
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\draw[red, <-, line width = 2mm] (X2) -- (Y2);
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\node [inner sep=7pt,label=above:\textcolor{black}{POST data}] at ($ (X2)!.5!(Y2) $) {};
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\end{tikzpicture}
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\end{textblock}
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\begin{textblock}{1}(9,5.5)
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\begin{tabular}{c}
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\includegraphics[scale=0.15]{../pics/laptop.png}\\[-2mm]
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\small Browser
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\end{tabular}
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\end{textblock}
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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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{\lstset{language=Java}\fontsize{7}{8}\selectfont
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\texttt{\lstinputlisting{URLReader.java}}}
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\only<2>{
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\begin{textblock}{5}(12,2)
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\includegraphics[scale=0.50]{../pics/skeleton.jpg}\\
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\end{textblock}}
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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{Conclusion}
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\begin{itemize}
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\item Scala is still under heavy development\\ (the compiler is terribly slow)\medskip
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\item {\bf\url{http://www.scala-lang.org/}}\bigskip
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\item it is a rather \textbf{\alert{deep}} language\ldots i.e.~gives you a lot of
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rope to shoot yourself\bigskip\bigskip
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\item hope you have fun with the coursework
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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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