C# Programming Level 1: Introduction for Programmers

In this live, instructor-led training course, students who already have a programming background will learn to program in C#. Attendees will learn: how C# works and its place in the world of programming languages; its relationship with the Common Language Infrastructure and .NET Framework; C# data types and operators; to write selection statements and loops; generic programming and working with collections; processing data; and error handling. This C# course is taught using C# 8.

Audience

Students new to the C# language who already have experience with other programming languages.

Prerequisites

This course is specially designed for individuals with prior programming background. You should also have a working knowledge of Object Oriented Programming concepts. If you have no prior programming experience or are not familiar with Object Oriented Programming, you should consider our "C# Programming Level 1: Introduction for Non-Programmers" course instead.

Course Outline

Starting with the Building Blocks of C#

• The history of C#
• Understanding the CLI
• Common Type System (CTS)
• Common Language Specification (CLS)
• Common Intermediate Language (CIL)
• Virtual Execution System (VES)
• The .NET family of frameworks
• .NET Framework
• .NET Core
• Xamarin
• Assemblies in .NET
• Global Assembly Cache (GAC)
• Runtime package store
• Understanding the basic structure of a C# program

Data Types and Operators

• Basic data types
• The integral types
• The floating-point types
• The decimal type
• The char type
• The bool type
• The string type
• The object type
• Variables
• Naming convention
• Implicity-typed variables
• Understanding the scope and lifetime of variables
• Understanding constants
• Reference types and value types
• Value types
• Reference types
• Boxing and unboxing
• Nullable types
• Arrays
• One-dimensional arrays
• Multi-dimensional arrays
• Jagged arrays
• Type conversion
• Implicit type conversion
• Explicit type conversion
• User-defined type conversions
• Conversions with helper classes
• Operators
• Arithmetic operators
• Relational operators
• Logical operators
• Bitwise and shift operators
• Assignment operators
• Other operators

Control Statements and Exceptions

• Understanding control statements
• Selection statements
• Iteration statements
• The jump statements
• Exception handling
• Summary
• Test what you learned

Understanding the Various User-Defined Types

• Classes and objects
• Fields
• Methods
• Constructors
• Properties
• Indexers
• The this keyword
• The static keyword
• The ref, in, and out parameters
• Methods with a variable number of arguments
• Named and optional arguments
• Access modifiers
• Partial classes
• Structures
• Enumerations
• Namespaces

Object-Oriented Programming in C#

• Understanding OOP
• Abstraction
• Encapsulation
• Inheritance
• Virtual members
• Abstract classes and members
• Sealed classes and members
• Hiding base class members
• Interfaces
• Polymorphism
• Method overloading
• Operator overloading
• SOLID principles

Generics

• Understanding generics
• Generic types
• Generic classes
• Inheritance with generic classes
• Generic interfaces
• Variant generic interfaces
• Generic structures
• Generic methods
• Type parameter constraints

Collections

• Introducing the System.Collections.Generic namespace
• The List<T> collection
• The Stack<T> collection
• The Queue<T> collection
• The LinkedList<T> collection
• The Dictionary<TKey, TValue> collection
• The HashSet<T> collection
• Choosing the right collection type
• Using thread-safe collections
• IProducerConsumerCollection<T>
• BlockingCollection<T>
• ConcurrentQueue<T>
• ConcurrentStack<T>
• ConcurrentBag<T>
• ConcurrentDictionary<TKey, TValue>
• Choosing the right concurrent collection type

Files, Streams, and Serialization

• Overview of the System.IO namespace
• Working with paths
• Working with files and directories
• Working with streams
• Overview of the stream classes
• Working with file streams
• Working with memory streams
• Serializing and deserializing XML
• Serializing and deserializing JSON
• Using Json.NET
• Using System.Text.Json

Error Handling

• Errors
• Exceptions
• Catching exceptions
• The exception objects
• Conditional catch
• Throwing exceptions
• Creating a custom exception type
• Rethrowing an exception
• The finally block
• Debugging and monitoring exceptions
• Debugging second-chance exceptions
• Debugging first-chance exceptions
• AppDomain exception events
• Logging exceptions