C# StreamWriter

by Online Tutorials Library July 14, 2022

C# StreamWriter

C# StreamWriter class is used to write characters to a stream in specific encoding. It inherits TextWriter class. It provides overloaded write() and writeln() methods to write data into file.

C# StreamWriter example

Let’s see a simple example of StreamWriter class which writes a single line of data into the file.

 using System; using System.IO; public class StreamWriterExample {     public static void Main(string[] args)     {         FileStream f = new FileStream(“e:\output.txt”, FileMode.Create);         StreamWriter s = new StreamWriter(f);          s.WriteLine(“hello c#”);         s.Close();         f.Close();  Console.WriteLine(“File created successfully…”);     } } 

Output:

File created successfully...

Now open the file, you will see the text “hello c#” in output.txt file.

output.txt:

hello c#

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