SUBPROGRAMS | qbasicdls

Sub programs

A subprogram is a program called by another program to perform a particular task or function for the program.

There are two different general types of subprograms available:

1) External — They exist as stand-alone programs that are listed in the program menu, and can be executed just like a regular program.

2) Internal — They are contained inside the program itself, so that they can be called by the program whenever needed.

_TITLE “SUBPROGRAMS” 'is used to

PRINT “SUBPROGRAMS” 'is used for mainheading

DIM SHARED X AS INTEGER 'Declare variable shared as an integer

CLS 'Clears the screen

X = 7 'Declare the variable statement

PRINT “X=”; X 'display variable x

XSQUARE 'SQUARE ROOT ROOT OF VARIABLE X

SUB XSQUARE 'TAKE AWAY RESULT OF SQUARE ROOT

PRINT “THE SQUARE ROOT OF “; X; “IS:; X * X 'DISPLAY RESULT OF SQUARE ROOT OF X

END SUB 'END SUB