Object-Oriented Programming

This outline provides an overview of the object-oriented programming principles used in the generic-math-examples codebase.

The codebase utilizes objects and classes to structure and organize the code. Classes are blueprints for creating objects, which are instances of those classes.

Key OOP Concepts

• Classes:

  • Define the structure and behavior of objects.
  • Encapsulate data (fields) and methods that operate on that data.
  • Example: RomanNumeral.cs defines the RomanNumeral class, which represents Roman numeral values.

• Objects:

  • Instances of classes, created using the new keyword.
  • Represent specific entities within the program.
  • Example: Numeral.Create('0'); creates an object of the Numeral class.

• Inheritance:

  • Allows creating new classes (derived classes) based on existing classes (base classes).
  • Derived classes inherit properties and methods from their base classes.
  • Example: If a Number class is defined, a RomanNumeral class could inherit from it.

• Polymorphism:

  • Ability to perform actions differently depending on the type of object.
  • Allows for code flexibility and extensibility.
  • Example: A method that accepts a list of numbers can operate on different types of numbers (integers, Roman numerals, etc.).

Code Examples

• Program.cs:

  • Demonstrates the creation and use of objects.
  • Uses the InvariantParse method to parse strings into objects.
  • Example: var name = InvariantParse("Fred"); creates a Name object.

• RomanNumeral.cs:

  • Defines the RomanNumeral class, which represents Roman numeral values.
  • Implements the IParseable interface to enable parsing of Roman numeral strings.
  • Example: Numeral.Parse("V", null) creates a Numeral object from the Roman numeral “V.”

• Name.cs:

  • Defines the Name class, which represents a name.
  • Implements the IParseable interface to enable parsing of name strings.
  • Example: var name = InvariantParse("Fred"); creates a Name object.

Benefits of OOP

• Modularity: Code is organized into reusable components.
• Maintainability: Code is easier to understand and modify.
• Extensibility: New features can be added without affecting existing code.
• Reusability: Code can be reused in different parts of the application or in other projects.

Top-Level Directory Explanations

obj/ - Temporary directory that stores compiled intermediate files during the build process.

obj/Debug/ - Temporary directory for debug versions of the compiled intermediate files.

obj/Debug/net6.0/ - Temporary directory for debug versions of the compiled intermediate files for .NET 6.0.