"bad file mode" error in qbasic

Question

I am just starting with file handling in qbasic. The program that I wrote always shows an error "bad file mode". Please help me!

OPEN "test.dat" FOR INPUT AS #1
CLS
INPUT "Enter username:"; a$
INPUT "Enter Password:"; b$
WRITE #1, a$, b$
CLOSE #1
END

Answer 1

If you want to WRITE output to a file then, logically, you might want to try this:

OPEN "test.dat" FOR OUTPUT AS #1
CLS
'etc