List of Common Access Modifiers in Object-Oriented Programming.

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Access modifiers are an essential concept in object-oriented programming (OOP) languages. They allow developers to control the visibility and accessibility of class members, such as methods and properties. Understanding access modifiers is crucial to creating well-structured, secure, and maintainable code. This blog will explore the fundamentals of access modifiers in OOP and discuss their various types and uses. Whether you're a beginner or an experienced programmer, this guide will help you improve your understanding of access modifiers and how to use them effectively.

This blog comprehensively lists common access modifiers used in object-oriented programming. It covers basic access modifiers like public, private, and protected, as well as more advanced ones like internal protected, read-only, and volatile. The article also describes abstract classes, interfaces, extension methods, and other language-specific features. Whether you're a beginner or an experienced developer, this guide can help you understand the various ways of controlling access to your code and data.

Here is a comprehensive list of common access modifiers used in object-oriented programming:

1. Public: Allows unrestricted access to a class, method, or variable from any part of the program.
2. Private: Restricts access to a class, method, or variable to only the same class in which it is defined.
3. Protected: Allows access to a class, method, or variable within the same class and its subclasses.
4. Default or Package-private: Allows access to a class, method, or variable within the same package (or namespace) but not outside of it.
5. Internal or Friend: Allows access to a class, method, or variable within the same assembly (or module) but not outside of it.
6. Read-only: Allows read-only access to a variable or property, meaning that the value can be accessed but not modified.
7. Final or Const: Defines a constant value that cannot be changed throughout the program.
8. Static: Defines a class-level variable or method that can be accessed without the need for an instance of the class.
9. Volatile: Indicates that a variable's value may be modified by other threads at any time, so the value should always be read directly from memory.
10. Abstract: Defines an abstract class or method that cannot be instantiated directly but must be extended or implemented by a subclass.
11. Interface: Defines a type that describes a contract or set of methods that must be implemented by any class that implements the interface.
12. Friend: Gives access to a class or function to a specific list of other classes or functions, even if they are not in the same namespace or module.
13. Protected Internal: Allows a member to be accessible within the same assembly (or module) and by derived classes.
14. Sealed: Prevents a class from being inherited by other classes.
15. Override: Allows a method from a base class to be overridden in a subclass.
16. Extension: Defines extension methods, which allow developers to add functionality to an existing class without modifying its source code.
17. Unsafe: Allows code to bypass certain safety checks in the runtime environment.
18. Transient: This indicates that a field should not be serialized when the object is written to a file or transferred over a network.
19. Internal Protected: Allows a member to be accessible within the same assembly (or module) and by derived classes.
20. Public Readonly: Allows a field to be read by any code in the program but not modified.
21. Private Protected: Allows a member to be accessible only within the same class or its derived classes that are in the same assembly (or module).

Note that not all programming languages support all of these access modifiers, and some may have additional ones not listed here. The specific use of access modifiers depends on the needs and conventions of the particular language and project.