Write and read text file using StreamWriter : Text File Read Write « File Directory Stream « C# / CSharp Tutorial

1. C# / CSharp Tutorial
2. File Directory Stream
3. Text File Read Write

using System;
using System.IO;

public class MainClass
{
    public static int Main(string[] args)
    {
    FileInfo f = new FileInfo("test.txt");

    StreamWriter writer = f.CreateText();
    writer.WriteLine("string 1");
    writer.WriteLine("string 2");
    
    for(int i = 0; i < 10; i++)
    {
      writer.Write(i + " ");
    }
    writer.Write(writer.NewLine);

    writer.Close();

    // Now read it all back in.
    StreamReader sr = File.OpenText("test.txt");

    string input = null;
    while ((input = sr.ReadLine()) != null)
    {
      Console.WriteLine (input);
    }

        return 0;
    }
}

string 1
string 2
0 1 2 3 4 5 6 7 8 9