<s>
The	O
C#	B-Application
programming	I-Application
language	I-Application
provides	O
many	O
classes	O
and	O
methods	B-Language
to	O
perform	O
file	B-Operating_System
and	O
stream	B-Architecture
input	O
and	O
output	O
.	O
</s>
<s>
The	O
most	O
common	O
stream	B-Architecture
classes	O
used	O
for	O
file	B-Operating_System
and	O
stream	B-Architecture
I/O	O
within	O
the	O
.NET	B-Application
Framework	I-Application
are	O
listed	O
below	O
:	O
</s>
