?? Elevate Your Code Quality with SOLID Principles! ??

Calling all intermediate developers! ?? Let's take your coding skills to the next level by diving deep into the SOLID principles, a set of guiding rules for robust and maintainable software:

?? Single Responsibility Principle (SRP)

• This principle emphasizes that a class should have only one reason to change, meaning it should have a single, well-defined responsibility.

class Order {
    public void CalculateTotal() { /* Calculation logic */ }
    public void SaveToDatabase() { /* Database logic */ }
}        

?? Open/Closed Principle (OCP)

• The OCP dictates that software entities should be open for extension but closed for modification. You can add new features without altering existing code.

abstract class Shape {
    public abstract double Area();
}

class Circle : Shape {
    public double Radius { get; set; }
    public override double Area() { /* Calculation logic */ }
}        

?? Liskov Substitution Principle (LSP)

• Subtypes should be substitutable for their base types without altering the program's correctness. It ensures that derived classes behave as expected.

class Bird {
    public virtual void Fly() { /* Default flying logic */ }
}

class Ostrich : Bird {
    public override void Fly() { /* Ostriches don't fly */ }
}        

?? Interface Segregation Principle (ISP)

• The ISP asserts that clients should not be forced to depend on interfaces they don't use. Keep your interfaces focused and specific.

interface ISwimmer {
    void Swim();
}

interface IFlyer {
    void Fly();
}

class Bird : IFlyer {
    public void Fly() { /* Flying logic */ }
}        

?? Dependency Inversion Principle (DIP)

• The DIP suggests that high-level modules should not depend on low-level modules. Both should depend on abstractions. It's all about using interfaces and abstractions for flexibility.

interface ISwitchable {
    void TurnOn();
}

class LightBulb : ISwitchable {
    public void TurnOn() { /* Implementation */ }
}        

Embracing these SOLID principles will help you write more maintainable and adaptable code. They are your compass on your journey towards becoming a software craftsman. Keep coding and stay SOLID! ????

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