Basic stuff on Files, Directories and Streams

/**
/ Author  : Nishant S
/ EMail   : nishforever@vsnl.com
/ Date    : June 27, 2002
/ Info    : Demo app for Code Project article
**/

#include "stdafx.h"

#using <mscorlib.dll>
#include <tchar.h>

#include <windows.h>
#include <conio.h>

using namespace System;
using namespace System::IO;

__gc class FileStuffDemo
{
public:
	void FileInfoDemo()
	{
		TCHAR WinPath[MAX_PATH+1];
		GetWindowsDirectory(WinPath,MAX_PATH+1);
		String* NotepadPath = WinPath;
		NotepadPath = String::Concat(NotepadPath,S"\\notepad.exe");
		
		FileInfo* finfo = new FileInfo(NotepadPath);
		Show("Name",finfo->Name);
		Show("Directory",finfo->Directory);
		Show("Extension",finfo->Extension);
		Show("Length",__box(finfo->Length));
		Show("FullName",finfo->FullName);
		Show("CreationTime ",finfo->CreationTime.ToString());		
	}
	void DirectoryInfoDemo1()
	{
		DirectoryInfo* dinfo = new DirectoryInfo("C:\\");
		DirectoryInfo* subdirs[] = dinfo->GetDirectories();
		Console::WriteLine("Sub-Directories for C:\\");
		Console::WriteLine("-----------------------");
		for(int i=0; i<subdirs->Length; i++)
			Show((i+1).ToString(),subdirs->Item[i]);
	}
	void DirectoryInfoDemo2()
	{
		DirectoryInfo* dinfo = new DirectoryInfo("C:\\");
		FileInfo* filesindir[] = dinfo->GetFiles();
		Console::WriteLine("Files under C:\\");
		Console::WriteLine("---------------");
		for(int i=0; i<filesindir->Length; i++)
			Show((i+1).ToString(),filesindir->Item[i]);		
	}
	void BinaryWriterDemo()
	{
		Console::WriteLine("Creating C:\\nish.com");
		Console::WriteLine("This will output an 'A' to the console");
		FileStream* fs = new FileStream("C:\\nish.com",
			FileMode::Create,FileAccess::Write);
		BinaryWriter* bw = new BinaryWriter(fs);
		unsigned char SomeBinaryData __gc[] = {0xb4,0x02,0xb2,0x41,0xcd,0x21,0xcd,0x20};
		bw->Write(SomeBinaryData);
		bw->Flush();
		bw->Close();
	}
	void BinaryReaderDemo()
	{
		Console::WriteLine("Reading C:\\nish.com");
		FileStream* fs = new FileStream("C:\\nish.com",
			FileMode::Open,FileAccess::Read);
		BinaryReader* br = new BinaryReader(fs);
		unsigned char c;
		while(br->PeekChar() != -1)
		{
			c = br->ReadByte();
			Console::Write("{0:X2} ",__box(c));
		}
		br->Close();
		Console::WriteLine();
	}
	void StreamWriterDemo()
	{
		Console::WriteLine("Creating C:\\TempFile.txt");
		StreamWriter *sw = new StreamWriter ("C:\\TempFile.txt");
		sw->WriteLine("This is the first line");		
		sw->WriteLine("This is the second line");		
		sw->WriteLine("This is the third/last line");		
		sw->Close();
	}
	void StreamReaderDemo()
	{
		Console::WriteLine("Reading C:\\TempFile.txt");
		Console::WriteLine("-----------------------");
		StreamReader* sr = new StreamReader ("C:\\TempFile.txt");
		String* s;
		while(s = sr->ReadLine())
			Console::WriteLine(s);
		sr->Close();
	}
	void StringReaderDemo(String* s)
	{
		Console::WriteLine("Reading the string [{0}]",s);
		StringReader* sr = new StringReader(s);
		int c;
		while((c = sr->Read()) != -1)
			Console::Write("{0} ",__box(Convert::ToChar(c)));
		Console::WriteLine();		
		sr->Close();
	}	
	void pause()
	{
		Console::WriteLine("\r\nPress any key...\r\n");
		_getch();		
	}
private:
	void Show(String *p, Object* s)
	{
		Console::WriteLine("{0} : {1}",p->PadRight(20),s);
	}	
};

int _tmain(void)
{	
	FileStuffDemo* fstuff = new FileStuffDemo();
	fstuff->FileInfoDemo();
	fstuff->pause();
	fstuff->DirectoryInfoDemo1();
	fstuff->pause();
	fstuff->DirectoryInfoDemo2();
	fstuff->pause();
	fstuff->BinaryWriterDemo();
	fstuff->pause();
	fstuff->BinaryReaderDemo();
	fstuff->pause();
	fstuff->StreamWriterDemo();
	fstuff->pause();
	fstuff->StreamReaderDemo();
	fstuff->pause();
	String* s = "Sometimes I wonder why!";
	fstuff->StringReaderDemo(s);
	fstuff->pause();
    return 0;
}