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Designed by Robert C. Martin, SOLID principles are a set of 5 object-oriented design(OOD) principles by software engineers and programmers in object-oriented programming.
The 5 SOLID principles of coding were established to tackle the troublesome design patterns and make your code more coherent and reliable.
Following the principles of coding will also help you in maintaining your code and making it agile.
From websites to smart TVs, smartphone applications to ATM machines, everything works on code. Codes and programs lay the foundation of the technological world.
Hence, it is important to create efficient and effective codes which will help in the creation and growth of innovations that change the world.
The 5 SOLID principles of coding help to achieve in writing such effective codes.
So far, you might say that we’re constantly talking about the 5 SOLID principles of coding. But what exactly are these principles of coding? What are the principles of coding system?
Curious? We can sense it!
5 SOLID principles of coding – What could they be?
The word SOLID is an acronym for the 5 principles of coding.
These 5 principles of coding are:
- The Single-Responsibility Principle (SRP)
- The Open-Closed Principle (OCP)
- The Liskov Substitution Principle (LSP)
- The Interface Segregation Principle (ISP)
- The Dependency inversion Principle (DIP)
“What could these 5 SOLID principles of coding possibly be? How will they help you?”
Wondering all such questions? Why not read further?
Let’s dive in and look into each principle more clearly!
#1 Let’s start with the ‘S’ – Single Responsibility principle
The Single Responsibility Principle (SRP) requires each module to control single optionality in order to build up understandable programs and code. Get the best services for Do my Java Homework.
If we talk about the statement, the single responsibility principle says that “A class should have
In simple words, a class should have only one responsibility and solve only one problem.one, and only one, reason to change.”
The single responsibility principle is a fundamental principle that most programmers currently follow while writing code. Classes, software components, and microservices; all benefit from the single responsibility principle.
Classes, software components, and microservices with a single responsibility are significantly easier to describe, comprehend, and implement than those that give a solution for all problems.
This decreases the number of bugs in your code, speeds up development, and makes it easier for you to code.
However, make sure that you do not oversimplify your code.
#2 The ‘O’ – Open – Closed Principle
The Open-Closed Principle (OCP) has two parts to it.
The principle states that the objects or entities should be open for extension but closed for modification.
The concept of the Open-Closed principle is that changing classes might cause issues and bugs. You want to extend the class rather than modify it.
What do the terms ‘open for extension’ and ‘closed for modification’ signify?
When sharing your code, make it obvious which areas should and should not be changed. Do my coding homework help students to learn and hire coding experts.
Open code indicates to others that certain elements of the program can be changed without breaking the software, and closed code indicates what should not be changed.
In other words, open for extension points that the behavior of a class can be extended.
Whereas, closed for modification suggests that the source code cannot be modified and is fixed.
Looks contradictory and complicated at the first sight. But the more you get comfortable with it, the easier it would be to implement the Open-Closed principle.
This isn’t to say that you can’t change your code when the code’s premises need to be changed; it just means that if you need to add new functions that are similar to the ones already in place, you shouldn’t have to change other portions of the code.
The usage of abstractions is a good technique to follow these rules and ensure that your class may be readily extended without modifying the code.
A typical way to comply with the open-closed principle is to use inheritance or interfaces that allow polymorphic substitutions.
#3 The third principle; The ‘L’ – Liskov Substitution Principle
The Liskov Substitution Principle (LSP) is concerned with the definition of variables in computer programming.
The third principle of coding by Uncle Bob states that the functions that use pointers or references to base classes must be able to use objects of derived classes without knowing it.
From all the 5 SOLID principles of coding, the Liskov Substitution principle might be the one that is more troublesome than the others.
Barbara Liskov, who first proposed behavioral subtyping in 1987, is credited with the principle’s title.
The Liskov Substitution principle, in simple terms, says that a derived class must be the substitute for its base class. So, if you are looking for Programming Assignment Help then you can reach out to codingzap.com
Barbara Liskov herself explains the principle by saying that there is an object O2 of type T for each object O1 of type S such that the behavior of P is unaltered when O1 is swapped for O2 for all programs P specified in terms of T, then S is a subtype of T.
Another way to state the Liskov Substitution principle (LSP) might be by saying:
“Let q(x) be a property provable about objects of x of type T. Then q(y) should be provable for objects y of type S where S is a subtype of T.”
While this is a challenging notion to absorb, it’s essentially an extension of the open-closed principle in that it ensures that derived classes extend the base class without affecting its behavior.
#4 ‘I’ – Interface Segregation Principle; the fourth principle
The fourth principle out of the 5 SOLID principles of coding, the Interface Segregation Principle (ISP), states that, “A client should never be forced to implement an interface that it doesn’t use, or clients shouldn’t be forced to depend on methods they do not use.”
Programmers can interface with users based on their program expertise or aptitude using the Interface Segregation Principle.
The conception of the Interface-Segregation principle is that it is much better to have many small interfaces than to have a few large ones.
A variety of client-specific interfaces is preferable to a single general-purpose interface.
Because of the smaller interfaces, developers should favor composition over inheritance and decouple over coupling.
You don’t want to start from scratch and add additional methods to an existing interface. Instead, begin by creating a new interface and then let your class implement as many as necessary.
#5 The ‘D’ – Dependency Inversion Principle
There are two components to the Dependency Inversion Principle (DSP).
The statement of the principle is:
“The principle separates out high- and low-level logic so that changes in low-level modules don’t affect higher functions. This separation is achieved by an abstraction, or interface, which doesn’t depend on details.”
The idea of the principle is that it separates high- and low-level logic, guaranteeing that changes to lower-level modules do not affect higher-level functions.
This separation is achieved through the use of abstraction, or interface, that is not dependent on precise specifics.
The Dependency Inversion Principle allows decoupling.
A dependency inversion design is one prominent solution for adhering to this idea, but it is not the only one.
Finding a way to apply this idea, whichever method you use, will make your code more flexible, agile, and reusable.
With the discussion of all the 5 SOLID principles of coding, we have reached our destination.
When SOLID design principles are followed throughout development, systems become more manageable, scalable, tested, and reusable.
Software engineers employ these principles of coding all around the world in today’s world.
Designing codes and programs by using the 5 SOLID principles of coding might seem complex and overwhelming at first.
While the principles have many advantages, adhering to them usually results in longer and more complex code.
This means that the design process will take longer and development will be more complex.
But the more you practice, the less complicated it will become.
You will find yourself enjoying following these principles as you continue to code.
It’s critical to follow these concepts in order to write decent code and use design approaches that are competitive while fulfilling industry standards.
After all, a little extra effort can help you write amazing codes and help you grow.