using System;
using System.IO;
using System.Text;
class Class1{
static void Main(string[] args) {
byte[] byData = new byte[100];
char[] charData = new Char[100];
try {
FileStream aFile = new FileStream("practice.txt",FileMode.Open);
aFile.Seek(55,SeekOrigin.Begin);
aFile.Read(byData,0,100);
}
catch(IOException e)
{
Console.WriteLine("An IO exception has been thrown!");
Console.WriteLine(e.ToString());
Console.ReadLine();
return;
}
Decoder d = Encoding.UTF8.GetDecoder();
d.GetChars(byData, 0, byData.Length, charData, 0);
Console.WriteLine(charData);
return;
}
}
Author: coder
Convert UTF-8 and ASCII encoded bytes back to UTF-16 encoded string
using System;
using System.IO;
using System.Text;
class Test
{
public static void Main()
{
using (StreamWriter output = new StreamWriter("practice.txt"))
{
// Create and write a string containing the symbol for Pi.
string srcString = "Area = u03A0r^2";
// Convert the UTF-16 encoded source string to UTF-8 and ASCII.
byte[] utf8String = Encoding.UTF8.GetBytes(srcString);
byte[] asciiString = Encoding.ASCII.GetBytes(srcString);
// Write the UTF-8 and ASCII encoded byte arrays.
output.WriteLine("UTF-8 Bytes: {0}", BitConverter.ToString(utf8String));
output.WriteLine("ASCII Bytes: {0}", BitConverter.ToString(asciiString));
// Convert UTF-8 and ASCII encoded bytes back to UTF-16 encoded
// string and write.
output.WriteLine("UTF-8 Text : {0}", Encoding.UTF8.GetString(utf8String));
output.WriteLine("ASCII Text : {0}", Encoding.ASCII.GetString(asciiString));
Console.WriteLine(Encoding.UTF8.GetString(utf8String));
Console.WriteLine(Encoding.ASCII.GetString(asciiString));
}
}
}
Action Text Reader Line
#region License
// Copyright (c) 2007 James Newton-King
//
// Permission is hereby granted, free of charge, to any person
// obtaining a copy of this software and associated documentation
// files (the "Software"), to deal in the Software without
// restriction, including without limitation the rights to use,
// copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the
// Software is furnished to do so, subject to the following
// conditions:
//
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
// OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
// HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
// WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
// OTHER DEALINGS IN THE SOFTWARE.
#endregion
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text;
using System.Text.RegularExpressions;
namespace Newtonsoft.Utilities.Text
{
public static class StringExtensions
{
private delegate void ActionLine(TextWriter textWriter, string line);
private static void ActionTextReaderLine(TextReader textReader, TextWriter textWriter, ActionLine lineAction)
{
string line;
bool firstLine = true;
while ((line = textReader.ReadLine()) != null)
{
if (!firstLine)
textWriter.WriteLine();
else
firstLine = false;
lineAction(textWriter, line);
}
}
}
}
Text file Write with format and write boolean value to a text file
using System;
using System.IO;
class Class1{
static void Main(string[] args){
try
{
FileStream aFile = new FileStream("practice.txt",FileMode.OpenOrCreate);
StreamWriter sw = new StreamWriter(aFile);
bool truth = true;
sw.WriteLine("A");
sw.WriteLine("{0}",System.DateTime.Now.ToShortDateString());
sw.Write("A");
sw.Write("www.kutayzorlu.com/java2s/com",truth);
sw.Close();
}
catch(IOException e)
{
Console.WriteLine("An IO exception has been thrown!");
Console.WriteLine(e.ToString());
Console.ReadLine();
return;
}
return;
}
}
Read text file line by line with exception catch
using System;
using System.IO;
class Class1{
static void Main(string[] args){
string strLine;
try
{
FileStream aFile = new FileStream("books.xml",FileMode.Open);
StreamReader sr = new StreamReader(aFile);
strLine = sr.ReadLine();
while(strLine != null)
{
Console.WriteLine(strLine);
strLine = sr.ReadLine();
}
aFile.Close();
sr.Close();
}
catch(IOException e)
{
Console.WriteLine("An IO exception has been thrown!");
Console.WriteLine(e.ToString());
return;
}
return;
}
}
Read whole text file to the end
using System;
using System.Data;
using System.IO;
class Class1{
static void Main(string[] args){
StreamReader sr = new StreamReader("practice.txt");
Console.WriteLine(sr.ReadToEnd());
sr.Close();
}
}
Write string to a text file
using System;
using System.Data;
using System.IO;
class Class1{
static void Main(string[] args){
StreamWriter sw = new StreamWriter("practice.txt");
sw.Write("www.kutayzorlu.com/java2s/com");
sw.Close();
}
}