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The C# programming language provides many classes and methods to perform file and stream input and output. The most common stream classes used for file and stream I/O within the .NET Framework are listed below:
In object-oriented programming, resources are encapsulated within objects that use them, such as a file object having a field whose value is a file descriptor (or more general file handle). This allows the object to use and manage the resource without users of the object needing to do so.
All object-oriented programming (OOP) systems support encapsulation, [2] [3] but encapsulation is not unique to OOP. Implementations of abstract data types, modules, and libraries also offer encapsulation. The similarity has been explained by programming language theorists in terms of existential types. [4]
Object-oriented programming (OOP) is a programming paradigm based on the concept of objects, [1] which can contain data and code: data in the form of fields (often known as attributes or properties), and code in the form of procedures (often known as methods).
Composition over inheritance (or composite reuse principle) in object-oriented programming (OOP) is the principle that classes should favor polymorphic behavior and code reuse by their composition (by containing instances of other classes that implement the desired functionality) over inheritance from a base or parent class. [2]
This comparison of programming languages compares how object-oriented programming languages such as C++, Java, Smalltalk, Object Pascal, Perl, Python, and others manipulate data structures. Object construction and destruction
In object-oriented programming, a class defines the shared aspects of objects created from the class. The capabilities of a class differ between programming languages , but generally the shared aspects consist of state ( variables ) and behavior ( methods ) that are each either associated with a particular object or with all objects of that class.
Alternatively a facade controller would be used; this applies when the object with responsibility for handling the event represents the overall system or a root object. The controller is defined as the first object beyond the UI layer that receives and coordinates ("controls") a system operation.