Beginner's Programming Tutorial in QBasic

Subroutines and functions

A subroutine (also called a "module") is a "mini-program" inside your program. In other words, it
is a collection of commands--and can be executed anywhere in your program.
To create a subroutine:

1. Go to the "Edit" menu


2. Select "New Sub"


3. Enter a name for the subroutine


4. Type a list of commands between SUB and END SUB

To use the subroutine:

1. Press F2


2. Select "Untitled"


3. Press Enter to return to the "main module"


4. Use CALL to execute the subroutine

TIP: Another way to create a subroutine is by

typing SUB <name> in the main module.

SUB MySub

The following example does not use subroutines:
PRINT "Enter some text:";
INPUT text$PRINT "The text you entered was: "; text$
PRINT "Enter some text:";INPUT text$
PRINT "The text you entered was: "; text$
PRINT "Enter some text:";INPUT text$
PRINT "The text you entered was: "; text$
PRINT "Enter some text:";
INPUT text$PRINT "The text you entered was: "; text$
PRINT "Enter some text:";INPUT text$
PRINT "The text you entered was: "; text$