File Copy with FileStream

using System; // java  2 s  . c  o m
using System.IO;  
 
class MainClass { 
  public static void Main(string[] args) { 
    int i; 
    FileStream fin; 
    FileStream fout; 
 
    try { 
      fin = new FileStream("inputFile.txt", FileMode.Open); 
    } catch(FileNotFoundException exc) { 
      Console.WriteLine(exc.Message + "\nInput File Not Found"); 
      return; 
    } 
 
    try { 
      fout = new FileStream("outputFile.txt", FileMode.Create); 
    } catch(IOException exc) { 
      Console.WriteLine(exc.Message + "\nError Opening Output File"); 
      return; 
    } 
 
    try { 
      do { 
        i = fin.ReadByte(); 
        if(i != -1) 
           fout.WriteByte((byte)i); 
      } while(i != -1); 
    } catch(IOException exc) { 
      Console.WriteLine(exc.Message + "File Error"); 
    } 
 
    fin.Close(); 
    fout.Close(); 
  } 
}

using System;//  j  a  v  a  2  s. c  om
using System.IO;
using System.IO.Compression;

public class MainClass
{
    public static void Main()
    {
        using (Stream from = new FileStream("c:\\test.txt", FileMode.Open))
        using (Stream to = new FileStream("c:\\test2.txt", FileMode.OpenOrCreate))
        {
            int readCount;
            byte[] buffer = new byte[1024];
            while ((readCount = from.Read(buffer, 0, 1024)) != 0)
            {
                to.Write(buffer, 0, readCount);
            }
        }
    }
}