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2022-08-26
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STRINGS ATTACHED
by
Matthew Oldham
COMMODORE POWER/PLAY MAGAZINE
August/September, 1986
"It's a lovely day in the
neighborhood.... Why, hello, boys and
girls! Today we're going to explore
two programs that demonstrate an
important programming technique--
string concatenation.
"Can you say 'con-CAT-e-NA-tion'? I
knew that you could...."
***
String concatenation allows you to
combine two or more different strings
into a single string (A$=B$+C$) or
expand an existing string with another
string (A$=A$+B$). When you deal with
data having repetitive elements, this
technique saves programming space and
running time.
Oldham's HANGMAN II program
("Strings-2") demonstrates string
concatenation. Words are constructed
of repetive elements. HANGMAN II
takes a list of these word parts, then
reassembles the puzzle's words through
the use of string concatenation.
The "Strings-1" program shows that
the string concatenation also works
with graphic and graphic command
strings. The vertical bar graph that
you see was produced by the
"Strings-1" program using string
concatenation. (You cannot interact
directly with this progam.)
***
As you've probably guessed, there is
more to "string concatenation" than
we've dealt with here. If you are
interested in learning more about this
programming technique and its use in
the two programs presented here,
consult Matthew Oldham's article in
the Commodore magazine cited above.
DISK FILES USED:
STRINGS MENU
STRINGS.1
STRINGS.2
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