C# Beginner to advanced – Lesson 60 – Stream reader and stream writer (System.IO)

Stream reader and stream writer:
C# includes following standard IO (Input/Output) classes to read/write from different sources like a file, memory, network, isolated storage, etc.
Stream: 
System.IO.Stream is an abstract class that provides standard methods to transfer bytes (read, write, etc.) to the source.
Classes that need to read/write bytes from a particular source must implement the Stream class.
The following classes inherits Stream class to provide functionality to Read/Write bytes from a particular source:
FileStream: reads or writes bytes from/to a physical file whether it is a .txt, .exe, .jpg or any other file. FileStream is derived from the Stream class.
MemoryStream: MemoryStream reads or writes bytes that are stored in memory.
BufferedStream: BufferedStream reads or writes bytes from other Streams to improve the performance of certain I/O operations.
NetworkStream: NetworkStream reads or writes bytes from a network socket.
PipeStream: PipeStream reads or writes bytes from different processes.
CryptoStream: CryptoStream is for linking data streams to cryptographic transformations.

Readers and Writers:
StreamReader: StreamReader is a helper class for reading characters from a Stream by converting bytes into characters using an encoded value. It can be used to read strings (characters) from different Streams like FileStream, MemoryStream, etc.
StreamWriter: StreamWriter is a helper class for writing a string to a Stream by converting characters into bytes. It can be used to write strings to different Streams such as FileStream, MemoryStream, etc.
BinaryReader: BinaryReader is a helper class for reading primitive datatype from bytes.
BinaryWriter: BinaryWriter writes primitive types in binary.

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