The acronym SOLID encompasses five principles: the Single Responsibility Principle, the Open/Closed Principle, the Liskov Substitution Principle, the Interface Segregation Principle and the Dependency Principle. SOLID is one of the foundations of object-oriented programming. This online video offers an introduction to SOLID principles and an explanation of how these basic principles tie back into object-oriented design.
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I'm going to go through the five principles of Object-Oriented Design that are…grouped under the acronym SOLID.…These were put together by the author Robert Martin, also known as Uncle Bob.…First, a word of warning: the names of these principles can sound excessively…complex, the meanings behind them are not quite so bad.…S is for the Single Responsibility Principle; O, the Open/Closed Principle; L,…the Liskov Substitution Principle; I is the Interface Segregation Principle; and…D is the Dependency Inversion Principle.…
Now, before you run screaming from the room, I will say that the concepts behind…most of these are much easier to recall than the names, and it's not about…remembering the names of these principles, that's really not important.…So let's take them one by one. First, the Single Responsibility Principle.…An object should have one primary responsibility, one reason to exist, and that…reason entirely encapsulated within one class.…It can have multiple behaviors, but all those behaviors are oriented around that…
Let Simon Allardice introduce you to the terms—words like abstraction, inheritance, polymorphism, subclass—and guide you through defining your requirements and identifying use cases for your program. The course also covers creating conceptual models of your program with design patterns, class and sequence diagrams, and unified modeling language (UML) tools, and then shows how to convert the diagrams into code.
- Why use object-oriented design (OOD)?
- Pinpointing use cases, actors, and scenarios
- Identifying class responsibilities and relationships
- Creating class diagrams
- Using abstract classes
- Working with inheritance
- Creating advanced UML diagrams
- Understanding object-oriented design principles
Skill Level Intermediate
1. Core Concepts
2. Object-Oriented Analysis and Design
Defining requirements6m 9s
3. Utilizing Use Cases
4. Domain Modeling (Modeling the App)
5. Creating Classes
6. Inheritance and Composition
7. Advanced Concepts
8. Object-Oriented Design Patterns
9. Object-Oriented Design Principles
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