C# Learning Hub

Study your IUST OOP slides in a docs-style format. Each chapter includes concise explanations, copyable code examples, and small fix-the-code exercises.

Introduction to C#

Ready

Syntax, variables, data types, type casting, user input, operators, strings, control flow, loops, arrays, and methods.

Source: 1.Intro_To_CSharp.pdf · EX11.pdf · Bro Code C# Full Course

Sections inside this chapter (32)
  1. 1. Program Structure and Syntax
  2. 2. Syntax — Exercise 1
  3. 3. Syntax — Exercise 2
  4. 4. Variables and Constants
  5. 5. Variables — Exercise 1
  6. 6. Variables — Exercise 2
  7. 7. Data Types
  8. 8. Data Types — Exercise 1
  9. 9. Type Casting
  10. 10. Type Casting — Exercise 1
  11. 11. User Input
  12. 12. User Input — Exercise 1
  13. 13. Operators
  14. 14. Operators — Exercise 1
  15. 15. Strings
  16. 16. Strings — Exercise 1
  17. 17. Control Flow — if/else and switch
  18. 18. Control Flow — Exercise 1
  19. 19. Control Flow — Exercise 2
  20. 20. Loops — for, while, foreach
  21. 21. Loops — Exercise 1
  22. 22. Loops — Exercise 2
  23. 23. Arrays
  24. 24. Arrays — Exercise 1
  25. 25. Methods
  26. 26. Methods — Exercise 1
  27. 27. Bro Code Review — Output and Escape Sequences
  28. 28. Bro Code Review — Math and Random
  29. 29. Bro Code Review — String Interpolation
  30. 30. EX11 Trace — Ternary Result
  31. 31. Bro Code Review — Exception Handling
  32. 32. Bro Code Review — Params Keyword
Open lesson

Classes and Objects

Ready

OOP concepts, members, constructors, destructors, and value/reference behavior.

Source: Ch1_OOP.pdf · EX0.pdf · EX1.pdf · EX11.pdf · EXer.pdf · Bro Code C# Full Course

Sections inside this chapter (16)
  1. 1. Defining a Class and Creating Objects
  2. 2. Classes and Objects — Exercise 1
  3. 3. Fields
  4. 4. Fields — Exercise 1
  5. 5. Properties
  6. 6. Properties — Exercise 1
  7. 7. Constructors
  8. 8. Constructors — Exercise 1
  9. 9. Destructors
  10. 10. Value vs Reference Types
  11. 11. Value vs Reference — Exercise 1
  12. 12. EX0 Practice — Employee Bonus
  13. 13. EX0 Practice — Car Classic Check
  14. 14. EX1 Trace — Reference Mutation
  15. 15. EX1 Trace — Reassigning Parameter
  16. 16. Bro Code Review — Constructor Purpose
Open lesson

Static Members and Namespaces

Ready

Static fields/methods/constructors, the this keyword, and namespaces.

Source: Ch2_OOP.pdf · EX7.pdf · EX11.pdf · EXXXX.pdf · Bro Code C# Full Course

Sections inside this chapter (14)
  1. 1. Static Fields
  2. 2. Static Fields — Exercise 1
  3. 3. Static Methods
  4. 4. Static Methods — Exercise 1
  5. 5. Static Constructor
  6. 6. The this Keyword
  7. 7. The this Keyword — Exercise 1
  8. 8. Namespaces
  9. 9. Namespaces — Exercise 1
  10. 10. EX7 Practice — GalleryVisitor Statistics
  11. 11. EX7 Practice — Product Counter
  12. 12. EXXXX Trace — Counter Alias
  13. 13. EXXXX Trace — Global vs Instance
  14. 14. Bro Code Review — Static Access Rule
Open lesson

Encapsulation and Overloading

Ready

Access levels, method overloading, constructor overloading, and operator overloading.

Source: Ch3_OOP.pdf · EX1.pdf · EX11.pdf · EXXXX.pdf · Bro Code C# Full Course

Sections inside this chapter (14)
  1. 1. Access Specifiers
  2. 2. Access Specifiers — Exercise 1
  3. 3. Method Overloading
  4. 4. Method Overloading — Exercise 1
  5. 5. Constructor Overloading
  6. 6. Constructor Overloading — Exercise 1
  7. 7. Operator Overloading
  8. 8. EX11 Review — this Keyword
  9. 9. EXXXX Practice — Fix Constructor Shadowing
  10. 10. Bro Code Review — Auto Properties
  11. 11. Bro Code Review — Read-Only Property
  12. 12. Bro Code Review — Access Level Choice
  13. 13. Bro Code Review — Overload Selection
  14. 14. Bro Code Review — Setter Validation
Open lesson

Inheritance

Ready

Base/derived relation, protected, virtual/override, base keyword, ToString override, and sealed.

Source: Ch5_OOP.pdf · EX1.pdf · Bro Code C# Full Course

Sections inside this chapter (15)
  1. 1. Base and Derived Classes
  2. 2. Base / Derived — Exercise 1
  3. 3. Protected Members
  4. 4. Protected Members — Exercise 1
  5. 5. Virtual and Override
  6. 6. Virtual / Override — Exercise 1
  7. 7. Calling the Base Constructor with base()
  8. 8. base() Practice — Exercise 1
  9. 9. Overriding ToString
  10. 10. Overriding ToString — Exercise 1
  11. 11. Sealed Classes
  12. 12. Bro Code Review — Abstract Class
  13. 13. Bro Code Review — base Keyword
  14. 14. Bro Code Review — Sealed Restriction
  15. 15. Bro Code Review — Override Behavior
Open lesson

Composition

Ready

Composition vs aggregation, nested classes, and partial classes.

Source: Ch4_OOP.pdf · EX1.pdf · Bro Code C# Full Course

Sections inside this chapter (14)
  1. 1. Composition
  2. 2. Composition — Exercise 1
  3. 3. Aggregation
  4. 4. Aggregation — Exercise 1
  5. 5. Nested Classes
  6. 6. Nested Classes — Exercise 1
  7. 7. Partial Classes
  8. 8. Partial Classes — Exercise 1
  9. 9. Bro Code Review — Has-A Relationship
  10. 10. Bro Code Review — Object as Argument
  11. 11. Bro Code Review — Array of Objects
  12. 12. Bro Code Review — List<T> Basics
  13. 13. Bro Code Review — Null Components
  14. 14. EX1 Applied — Rectangle Area
Open lesson

Method Hiding and Polymorphism

Ready

Compile-time vs runtime polymorphism, overloading, overriding, method hiding with new, and upcasting.

Source: Ch6_OOP.pdf · EX1.pdf · EXer.pdf · Bro Code C# Full Course

Sections inside this chapter (14)
  1. 1. Compile-time Polymorphism — Overloading
  2. 2. Overloading — Exercise 1
  3. 3. Runtime Polymorphism — Overriding
  4. 4. Overriding — Exercise 1
  5. 5. Method Hiding with new
  6. 6. Method Hiding — Exercise 1
  7. 7. Upcasting and Downcasting
  8. 8. Upcasting / Downcasting — Exercise 1
  9. 9. Bro Code Review — Interface Basics
  10. 10. Bro Code Review — Generic Method Idea
  11. 11. Bro Code Review — Enum Usage
  12. 12. EX1/EXer Review — OOP Pillars
  13. 13. Bro Code Review — Override vs new
  14. 14. Bro Code Review — Multithreading Awareness
Open lesson