Application of public,private,internal and other modifiers in C #

-----------------------from-Drift blog----------------------

Character is used to qualify a type and a declaration of a type member, there are 13 modifiers in C # that can be divided into three parts by function: Access modifiers, class modifiers, and member modifiers.

Access modifiers:

Public: Access is unrestricted.

Private: Only classes that contain that member can be accessed.

Internal: Only current projects can be accessed.

Protected: Only the class that contains the member and the inherited class can be accessed.

Class Modifiers:

Abstract: Can be indicated that a class can only serve as a base class for other classes.

Sealed: Indicates that a class cannot be inherited.

Member Modifiers:

Abstract: Indicates that the method or property is not implemented.

Const: Specifies that the value of a field or local variable cannot be altered.

Event: Declares an event.

extern: Indicates that the method is implemented externally.

Override: A new implementation of an inherited member of the radical class.

ReadOnly: Indicates that a field can be assigned only at declaration time and within the same class.

Static: Indicates that a member belongs to the type itself, not to a particular object.

Virtual: Indicates that an implementation of a method or accessor can be overridden in an inherited class.