asked on

text files for I/O

{I'm just started learning Delphi this week }
I need a program to write real numbers and string text to a textfile and read them out to a 2 dimensional array and preform some calculations and output onto the form.

If you could help me out with answers or sample code that'd be great.

roadie031198

ASKER

Edited text of question

Marcelito

You need create a variable like this

var VariableName:Text;
buffer:string;

Then you can try open the file:

AssignFile(VariableName,"PhysicalName of file (on disk)"); { Map variable to a real file}
Rewrite(LogFile); {Clear and open the file}

If you want write

Write(VariableName,"text that you want write")

or

Writeln(VariableName,"text that you want write")

If you want read from file

Readln(VariableName,buffer) {Read one line from the file and set to next line}

When you finish

CloseFile(VariableName).

If you have doubts, write again. GoodLuck!!!!!!

ZifNab

Yo roadie,

That VariableName can be everything.

eg. You want to write strings (chars) to a file :
VariableName : File of char
or File of String
or Text (Short for File of String)
You want to write numbers ? :
VariableName : File of integer
File of real;
You want to write records ? :
Score = RECORD
Name : string[50];
Value : Real;
End;

--> VariableName : Score

......... and keep going on, on, on, on ...............

Regards, Zif.

Nice to hear about newcommers.

Succes!

ASKER CERTIFIED SOLUTION

williams2

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roadie031198

ASKER

thanks alot

sorry for the late reply

williams2

Don't mention it. If you have found it usefull, that's satisfaction enough to me. The others somehow did come up with different and correct answers, but it happens too often that experts don't seem to come up with simple answers, and that's a hint to everyone. Keep it simple!