Python Classes
Everything in the Python language is an object. This includes numbers, strings, data structures, functions, classes, modules and […]
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Head First Design Patterns
Head First Design Patterns is the title of a good book that can be used to learn design […]
Object Oriented Programming (OOP)
There is a good video on this subject on YouTube. Mosh Hamedani explains OOP and compares it to […]
Software Design Principles
Design principles lay your design foundation. Design patterns are built on top of design principles. Design principles come […]
Excel VBA Object Oriented
VBA is an object oriented programming language. It has individual objects, each of which has its own set […]
C# Interfaces Testability
This post is based on Mosh Hamedani’s course at Udemy.com. It’s from his C# Intermediate course, section 6 […]
C# Interfaces Extensibility
Let’s use an example to illustrate how interfaces can be used in our own code. We have a […]
C# Composition
There are two kinds of relationships between classes: Inheritance (is-a) Composition (has-a) This post is based on an […]
C# Access Modifiers
What are access modifiers? Access modifiers are used to control access to a class and/or its members. We […]
C# Classes Theory 2
Before we can understand classes, we need to have a good knowledge of the basic building blocks. Encapsulation […]
Programming Paradigms
Wikipedia has an article on programming paradigms. Wikipedia says: “Programming paradigms are a way to classify programming languages […]