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<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>Learning C#</title>
<meta name="description" content="Learning C#.js">
<meta name="author" content="Elena Zhelezina">
<meta name="apple-mobile-web-app-capable" content="yes" />
<meta name="apple-mobile-web-app-status-bar-style" content="black-translucent" />
<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no">
<link rel="stylesheet" href="css/reveal.min.css">
<link rel="stylesheet" href="css/theme/solarized.css" id="theme">
<!-- For syntax highlighting -->
<link rel="stylesheet" href="lib/css/solarized_dark.css">
<!-- If the query includes 'print-pdf', use the PDF print sheet -->
<script>
document.write( '<link rel="stylesheet" href="css/print/' + ( window.location.search.match( /print-pdf/gi ) ? 'pdf' : 'paper' ) + '.css" type="text/css" media="print">' );
</script>
<!--[if lt IE 9]>
<script src="lib/js/html5shiv.js"></script>
<![endif]-->
</head>
<body>
<div class="reveal">
<div class="slides">
<section><!-------------------------- slide ------------------------>
<h1>C#</h1>
<h4>Show-and-tell presentation</h4>
<p>
<small>Created by <a href="mailto:elena.zhelezina@autodesk.com">Elena Zhelezina</a> </small>
</p>
</section>
<section data-transition="zoom"><!-------------------------- slide ------------------------>
<h2 position:relative; top:10px;>Language popularity index</h2>
<img data-fragment-index="1" src="images/language_popularity.JPG" alt="Language popularity index">
</section>
<section data-transition="zoom"><!-------------------------- slide ------------------------>
<h2 style="position:relative; top:10px;">Resources</h2>
<a href="http://www.amazon.co.uk/C-5-0-Nutshell-Definitive-Reference/dp/1449320104/ref=sr_1_1?ie=UTF8&qid=1429732647&sr=8-1&keywords=c%23+in+a+nutshell">
<img data-fragment-index="1" src="images/book.jpg" alt="C++ book" border="0">
</a>
</section>
<!--
<section data-transition="zoom">
<h2 style="position:relative; top:10px;">.NET Stack</h2>
<img data-fragment-index="1" src="images/net.jpg" alt=".NET Stack" border="0">
</section>
-->
<section>
<section id="photos">
<h2>Code examples</h2>
<ul>
<li><a href="#/types">Numerical types</a>,</li>
<!--<li><a href="#/structvsclass">Value-type vs Reference-type</a>, </li>-->
<li><a href="#/virtual">Virtual function members</a>, </li>
<li><a href="#/partial">Partial classes</a>, </li>
<li><a href="#/interface">Classes and Interfaces</a>, </li>
<li><a href="#/generic">Generics</a></li>
</ul>
</p>
<div class="navigate-down" style="cursor: pointer;"><img src="images/arrow_down.png" style="border: none; background:none; box-shadow:none;" alt="Arrow Down"></div>
</section>
<section id="types">
<h2 style="position:relative; top:10px;">Numerical types</h2>
<pre><code data-trim>
decimal d = 10.1M;
double dip = double.InfinityPositive;
double din = double.InfinityNegative;
double nan = double.NaN;
string str = double.ToString();
</code></pre>
<br>
<h4> Short-circuit</h4>
<pre><code data-trim>
return (!windy && (rainy || sunny));
return (!windy & (rainy | sunny));
</code></pre>
</section>
<section id="structvsclass">
<h2 style="position:relative; top:10px;">Value-type vs Reference-type</h2>
Boxing/unboxing concept for a unified type system
<pre><code data-trim>
int x = 9;
object obj = x; // box the int
int y = (int)obj; // unbox the int
// copied
int i = 3;
object boxed = i;
i = 5;
Console.WriteLine(boxed); //3
</code></pre>
</section>
<section id="virtual">
<h2 style="position:relative; top:10px;">Virtual function members</h2>
<pre><code data-trim>
public class Asset
{
public string Name;
public virtual decimal Liability { get {return 0;}}
public sealed void getData {...}
}
// can inherit just one class
public class House: Asset
{
public decimal Morgage;
public override decimal Liability { get {return Morgage;}}
}
</code></pre>
</section>
<section id="partial">
<h2 style="position:relative; top:10px;">Partial classes</h2>
Partial types allow a type detinition to be split:
<pre><code data-trim>
// PaymentFormGen.cs - auto-generated
partial class PaymentForm {..}
// PaymentForm.cs - hand-generated
partial class PaymentForm {..}
</code></pre>
</section>
<section id="interface" >
<h2 style="position:relative; top:10px;">Classes vs Interfaces</h2>
<pre><code data-trim>
public interface IEnumerator
{
bool MoveNext();
object Current {get;}
void Reset();
}
</code></pre>
<br>
<pre>
<code data-trim>
internal class Countdown: IEnumerator
{
int count = 11;
public bool MoveNext() {return count-- > 0;}
public object Current { get {return count;}}
public void Reset() { throw new NotSupportedException();}
}
</code></pre>
</section>
<section id="generic" >
<h2 style="position:relative; top:10px;">Generics</h2>
<pre><code data-trim>
class GenericClass<T, U> where T: SomeClass, SomeInterface
where U : new()
{...}
</code></pre>
<h4>covariance</h3>
<pre><code data-trim>
Stack<Bear> bears = new Stack<Bear>();
Stack<Animal> animals = bears; // Compile-time error
</code></pre>
<h4>contravariance</h3>
<pre><code data-trim>
public interface IPushable<in T> { void Push (T obj); }
IPushable<Animal> animals = new Stack<Animal>();
IPushable<Bear> bears = animals;
bears.Push(new Bear());
</code></pre>
</section>
</section>
<section>
<h2>Demonstration</h2>
<img data-fragment-index="1" src="images/demonstration.jpg" alt="Language popularity index">
<h4>Examples are available on GitHub <a href="https://github.com/wwwind/sandbox_csharp">here</a><h4>
</section>
</div><!-- slides -->
</div><!-- reveal -->
<style>
.tabindent {
display: inline-block;
width: 30px;
}
</style>
<script src="lib/js/head.min.js"></script>
<script src="js/reveal.min.js"></script>
<script>
// Full list of configuration options available here:
// https://github.com/hakimel/reveal.js#configuration
Reveal.initialize({
controls: true,
progress: false,
history: true,
center: true,
rollingLinks: false,
theme: Reveal.getQueryHash().theme, // available themes are in /css/theme
transition: Reveal.getQueryHash().transition || 'default', // default/cube/page/concave/zoom/linear/fade/none
transitionSpeed: 'slow',
// Optional libraries used to extend on reveal.js
dependencies: [
{ src: 'lib/js/classList.js', condition: function() { return !document.body.classList; } },
{ src: 'plugin/markdown/marked.js', condition: function() { return !!document.querySelector( '[data-markdown]' ); } },
{ src: 'plugin/markdown/markdown.js', condition: function() { return !!document.querySelector( '[data-markdown]' ); } },
{ src: 'plugin/highlight/highlight.js', async: true, callback: function() {
hljs.tabReplace = '<span class="tabindent">\t</span>';// replace tabs with spaces
hljs.initHighlightingOnLoad();
} },
{ src: 'plugin/zoom-js/zoom.js', async: true, condition: function() { return !!document.body.classList; } },
{ src: 'plugin/notes/notes.js', async: true, condition: function() { return !!document.body.classList; } }
// { src: 'plugin/search/search.js', async: true, condition: function() { return !!document.body.classList; } }
// { src: 'plugin/remotes/remotes.js', async: true, condition: function() { return !!document.body.classList; } }
]
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</body>
</html>