space after the N of
ON
or forgot the period and the space before
TOO BAD!. Those spaces are important. Practice with another string
variable input:
30
DIM
NAME$
(.1)
.170
PRINT
"BV
THE
HAV
..
HHAT
IS
YOUR
NAME";
.180
INPUT
NAME$
.1
~o
PRINT"
HELL
..
";
NAME$;"
..
I
BET
YOU
HOULD
LIKE
TO
KNOH
HOH
MUCH
YOU
HON.
FIRST
YOU
HAVE
TO
ANSHER
A
QUESTION.
"
Run
the program. Even though you typed
in
a fu
ll
name, the computer
printed
only the first initial. That happened because the area
dimensioned
in
RAM
memory
for the name was too small . Most
people's names are longer than one character. Change line
30
to a
more
reasonable number of spaces and run the program:
30
DIM
NAME$
(25)
RUN
Inputting Numeric Variables
So
far you have been working with alphanumeric string
variables-
variabl
es
composed of letters, numbers, or both. For instance, the
computer
would
accept
the name R2-D2 or 007 as a string variable.
However, the number name would be used only as a name, not
as
a
number
in
any math problems. Now try some numeric variables that
can be used
in
mathematical calculations.
Numeric
variables do not
need a
DIM command or a do
ll
ar sign. Enter the following program
lines:
200
PRINT:
PRINT
"HOH
OLD
ARE
VOU";
2.10
INPUT
AGE
220
PRIZE=AGE*.1000
230
PRINT:
PRINT
"VOU
HAVE
JUST
HON
$".:
PRIZE;"
FROM
THE
LOTTERV.
YOU
CAN
COLLECT
DURING
OFFICE
HOURS.
"
In
this program, t
he
age that you enter is stored
in
the numeric
variable called
AGE.
Line 220 creates another variable called PRIZE.
Line 220 allows the
computer's
built-in
calculator
to
calculate
the
prize money, which
is
$1000 multiplied by the age of the winner. (To
the computer,
* means multiply.) The program does the math for you
and stores the answer
in
PRIZE. Line 230,
which
places the numeric
value
in
side the PRINT statement
in
the same manner as string
variables, tells you what the answer is.
45
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