Tutorial 40 continues from Part 1. This tutorial shows what happens if a file, that does not exist, is opened for input. This tutorial shows how to check to see if the text file exists and how to make the text file if the file does not exist.
Notes
EOF - End Of File
LOF - Length Of File
Code Download
QBT40_1.BAS
QBT40_2.BAS
QBT40_3.BAS
QB64 is a free download at www.qb64.org
QB64 Wiki & Manual is found at www.qb64.org/wiki/Main_Page
QBasic 1.1 is found within OldDOS.exe.
OldDos is a free download at download.microsoft.com/download/win95upg/tool_s/1.0/W95/EN-US/olddos.exe
On some web browsers, the Microsoft link does not work, because the download comes as an exe file.
A zip file of OldDOS can be found at www.pcxt-micro.com/download.html
QBasic 1.1 needs DOSBox to run on Windows Vista and greater, Mac, and Linux.
DosBox is a free download at www.dosbox.com
Free QB64/QBasic Code
QBasic.Net - www.qbasic.net
Pete's QBasic Site - www.petesqbsite.com/index.php
QB45 - qb45.org
Phatcode - games.phatcode.net