Home » C# Book » Stream » StreamReader StreamWriter »

Read and Write various types

You can read and write other types such as integers, but because TextWriter invokes ToString on your type, you must parse a string when reading it back:


using System;
using System.IO;
using System.Linq;
class Program
{
    static void Main()
    {
        using (TextWriter w = File.CreateText("data.txt"))
        {
            w.WriteLine(123); // Writes "123" 
            w.WriteLine (true); // Writes the word "true"
        }

        using (TextReader r = File.OpenText("data.txt"))
        {
            int myInt = int.Parse(r.ReadLine());  // myInt == 123 
            bool yes = bool.Parse (r.ReadLine()); // yes == true
        }
    }
}

« Static methods for text file

UTF-16 character File »

java2s.com | Contact Us | Privacy Policy

All other trademarks are property of their respective owners.