new StreamReader(System.in code example

Example 1: c# streamreader

// The StreamReader are using the Namespaces: System and system.IO

using (StreamReader sr = new StreamReader("TestFile.txt"))
{
  string line;
  while ((line = sr.ReadLine()) != null)
  {
    Console.WriteLine(line);
  }
}

Example 2: C# using StreamReader

using System.IO; // <- This is the class for StreamReader