C# Fundamentals

Learn to design, implement, and test C# programs from the ground up. This hands-on course covers the fundamentals of the language, including data types, control flow, object-oriented programming, collections, exception handling, and debugging, building the solid foundation you need to write robust, maintainable C# applications with confidence.

What You'll Learn

By the end of this course, you will be able to:

• Set up, compile, and run C# projects in an integrated development environment
• Use data types, variables, operators, and expressions to build program logic
• Write conditional statements and loops to control program flow
• Create classes, objects, methods, and constructors using object-oriented principles
• Apply inheritance, polymorphism, abstract classes, and interfaces to design reusable code
• Work with arrays, lists, dictionaries, and generics for type-safe collections
• Handle exceptions and debug applications using breakpoints, tracepoints, and the Watch Window
• Parse, create, and serialize XML data for structured data exchange
• Write and organize unit tests to validate code quality

Requirements

• Basic familiarity with programming concepts is helpful but not required
• Access to a C# development IDE such as Visual Studio

Audience

• Aspiring C# Developers
• Software Engineers and Application Developers
• Technical Analysts and QA Engineers
• Anyone seeking a solid foundation in C# programming

Topics

Getting Started with C#

• Setting up a C# project in an IDE
• Exploring the development environment and project structure
• Compiling and running simple programs

Data Types and Variables

• Identifying and using C# data types (value and reference types)
• Declaring, initializing, and modifying variables
• Understanding constants and read-only variables

Operators and Expressions

• Using arithmetic, logical, and comparison operators
• Combining operators to form expressions
• Operator precedence and evaluation

Control Flow

• Writing conditional statements (if, else if, else)
• Implementing multi-branch logic with switch statements
• Looping constructs: for, foreach, while, and do-while
• Nested loops and flow control techniques

Arrays and Collections

• Declaring and initializing arrays
• Working with lists, dictionaries, and other collection types
• Iterating through collections
• Introduction to generics for type-safe, reusable code

Object-Oriented Programming

• Creating and using classes and objects
• Implementing constructors and constructor overloading
• Using namespaces and the using directive
• Writing reusable methods and method overloading
• Applying inheritance and demonstrating polymorphism
• Defining and using abstract classes and interfaces

String Handling

• String manipulation: concatenation, substring, and case changes
• Using string interpolation and formatting placeholders
• Parsing and tokenizing strings for processing

Exception Handling and Debugging

• Handling exceptions with try-catch-finally and throw
• Debugging with breakpoints, tracepoints, and the Watch Window
• Writing robust code with error handling best practices

Working with XML

• Parsing and creating XML documents
• Serializing and deserializing XML data in C#
• Using XML to store and exchange structured data

Unit Testing

• Writing and organizing unit tests in C#
• Using assertions and testing attributes
• Applying test-driven development practices to ensure code quality