What are C# I/O Classes? What are the commonly used I/O Classes?

 C# has System.IO namespace, consisting of classes that are used to perform various operations on files like creating, deleting, opening, closing etc.

Some commonly used I/O classes are:

• File – Helps in manipulating a file.
• StreamWriter – Used for writing characters to a stream.
• StreamReader – Used for reading characters to a stream.
• StringWriter – Used for reading a string buffer.
• StringReader – Used for writing a string buffer.
• Path – Used for performing operations related to path information.