
Delve into .NET development with C#, covering programming fundamentals, object-oriented principles, exception handling, and multithreading. Gain hands-on experience to build cross-platform applications effectively.

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.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

## Introduction

The basic principles behind different thread synchronization mechanisms are almost the same. Whenever a thread will use a shared resource (and thus enter the critical section), it locks it. If two threads are to use the same shared resource, one of them waits while the other one works with it.

## The `lock` keyword

The most straightforward way to achieve our synchronization objectives is to enclose the critical section of our code within a `lock` block. We have to use some dummy object as a locker:

```C#
static object locker = new object();

static void SomeMethod()
{
    lock(locker)
    {
        // Critical section
    }
}
```

The `locker` variable is an arbitrary dummy object that the `lock` statement uses to gain exclusive access to the critical section. When a thread reaches the `lock` statement, it first checks whether the `locker` is free. If not, it waits until the `locker` is released. 

Let’s see if this approach solves the problem with a shared resource access:


# Introduction

The basic principles behind different thread synchronization mechanisms are almost the same. Whenever a thread will use a shared resource (and thus enter the critical section), it locks it. If two threads are to use the same shared resource, one of them waits while the other one works with it.

# The `lock` keyword

The most straightforward way to achieve our synchronization objectives is to enclose the critical section of our code within a `lock` block. We have to use some dummy object as a locker:

```C#
static object locker = new object();

static void SomeMethod()
{
    lock(locker)
    {
        // Critical section
    }
}
```

The `locker` variable is an arbitrary dummy object that the `lock` statement uses to gain exclusive access to the critical section. When a thread reaches the `lock` statement, it first checks whether the `locker` is free. If not, it waits until the `locker` is released. 

Let’s see if this approach solves the problem with a shared resource access:


Learn about the most common ways to synchronize threads.

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

Lock and Monitor

Introduction

The `lock` keyword

First Assessment

Final Assessment

Lock and Monitor

Introduction

The lock keyword

The `lock` keyword