csharp.tar.gz

CSharp-Compile-Run-code

.NET is Microsoft’s free and open source framework for developing native software applications on Linux, macOS, and Windows. The power of cross-platform development allows developers to design, code, and run programs on a wide array of platforms.

This course is an introduction to developing .NET applications using C#. You’ll start start with a comprehensive review of C# and computer programming fundamentals: data types, conditionals, loops, methods, and more. You’ll then review the basics of object-oriented programming before diving into methods, exception handling, delegation, and events. With this foundation, you’ll continue building interfaces, collections, database operations, and multithreading. You’ll wrap up with process improvements using dynamic binding, garbage collection, and unmanaged resources.

By the end of this course, you’ll have hands-on experience with C# and .NET, and be ready to build applications using object-oriented programming principles on almost any platform.

Mastering C# and .NET

Consider the following code:

```C#
var messages = new ArrayList();

messages.Add("Hello World!");
messages.Add("Good bye!");

foreach (var message in messages)
{
    Console.WriteLine(message);
}
```

Which type of the `message` variable?

Consider the following code:
<pre><code class="language-C#">var messages = new ArrayList();

messages.Add(&quot;Hello World!&quot;);
messages.Add(&quot;Good bye!&quot;);

foreach (var message in messages)
{
 Console.WriteLine(message);
}
</code></pre>
Which type of the <code>message</code> variable?

```C#
list.Add(Convert.ToInt32("61"));
```

```C#
foreach (bool item in list)
{
}
```

Consider the following code:

```C#
var list = new List<int>();
```

**(Select all that apply.)** Which yields an error?

Consider the following code:
<pre><code class="language-C#">var list = new List&lt;int&gt;();
</code></pre>
(Select all that apply.) Which yields an error?

Which event triggers when we add an item to an `ObservableCollection` object?

Which event triggers when we add an item to an <code>ObservableCollection</code> object?

Collections Quiz

Collections Quiz

Test your knowledge of .NET collection types.

Getting Started

C# Programming Basics

Classes and OOP

Classes and OOP II

Exception Handling

First Assessment

Delegates and Events

Interfaces

Additional Features

Collections

LINQ

Working with Strings

Working with Dates and Time

Multithreading and Asynchronous Programming

Reflection

Dynamic Binding

Garbage Collection and Unmanaged Resources

Final Assessment

Next Steps

Appendix

Quiz Yourself: Collections