--- a/slides/slides01.tex	Thu Nov 10 01:31:12 2016 +0000
+++ b/slides/slides01.tex	Thu Nov 10 04:02:45 2016 +0000
@@ -1,6 +1,6 @@
 \documentclass[dvipsnames,14pt,t,xelatex]{beamer}
 \usepackage{../slides}
-%\usepackage{../graphics}
+\usepackage{../graphics}
 \usepackage{../langs}
 %\usepackage{../data}
 
@@ -79,7 +79,10 @@
 \frametitle{Why Scala?}
 
 \begin{itemize}
-\item bla
+\item compiles to the JVM (also JavaScript, X86)\medskip
+\item integrates seamlessly with Java\medskip
+\item combines {\bf functional} and {\bf object-oriented} programming\medskip
+\item allows often to write more elegant code
 \end{itemize}  
 
 \end{frame}
@@ -87,6 +90,29 @@
 
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 \begin{frame}[c]
+\frametitle{Java vs Scala}
+
+{\lstset{language=java}\fontsize{12}{12}\selectfont
+\texttt{\lstinputlisting{Point.java}}}
+
+{\lstset{language=scala}\fontsize{12}{12}\selectfont
+\texttt{\lstinputlisting{Point.scala}}}
+
+\begin{textblock}{6}(13,3)
+\textbf{\large Java}
+\end{textblock}  
+
+\begin{textblock}{6}(13,13.2)
+\textbf{\large Scala}
+\end{textblock}  
+
+\end{frame}
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%   
+
+
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+\begin{frame}[c]
 \frametitle{Types}
 
 \begin{itemize}
@@ -124,6 +150,62 @@
 \end{frame}
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%   
 
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+\begin{frame}[c]
+\frametitle{An Http Request}
+  
+\begin{textblock}{1}(2,5)
+\begin{tabular}{c}
+\includegraphics[scale=0.15]{../pics/servers.png}\\[-2mm]
+\small Server
+\end{tabular}
+\end{textblock}
+
+\begin{textblock}{1}(5.6,4)
+  \begin{tikzpicture}[scale=1.1]
+  \draw[white] (0,1) node (X) {};
+  \draw[white] (2,1) node (Y) {};
+   \draw[white] (0,0) node (X1) {};
+  \draw[white] (2,0) node (Y1) {};
+   \draw[white] (0,-1) node (X2) {};
+  \draw[white] (2,-1) node (Y2) {};
+  \draw[red, <-, line width = 2mm] (X) -- (Y);
+  \node [inner sep=5pt,label=above:\textcolor{black}{GET request}] at ($ (X)!.5!(Y) $) {};
+  \draw[red, ->, line width = 2mm] (X1) -- (Y1);
+  \node [inner sep=5pt,label=above:\textcolor{black}{webpage}] at ($ (X1)!.5!(Y1) $) {};
+  \draw[red, <-, line width = 2mm] (X2) -- (Y2);
+  \node [inner sep=7pt,label=above:\textcolor{black}{POST data}] at ($ (X2)!.5!(Y2) $) {};
+  \end{tikzpicture}
+\end{textblock}
+
+
+\begin{textblock}{1}(9,5.5)
+\begin{tabular}{c}
+\includegraphics[scale=0.15]{../pics/laptop.png}\\[-2mm]
+\small Browser
+\end{tabular}
+\end{textblock}
+\end{frame}
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%   
+
+  
+
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+\begin{frame}[c]
+
+{\lstset{language=Java}\fontsize{7}{8}\selectfont
+\texttt{\lstinputlisting{URLReader.java}}}
+
+\only<2>{
+\begin{textblock}{5}(12,2)
+\includegraphics[scale=0.50]{../pics/skeleton.jpg}\\
+\end{textblock}}
+\end{frame}
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%   
+
+
+
 \end{document}
 
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