More On Character Strings; Dimensioni Ng Strings; Concatenation - Sharp PC-1500 Instruction Manual

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column 1
column 3
column 4
row
0
T (0. 01 T 10. 1)
T (0, 21 T 1 0, 3 )
rO\;\l
T 11. 01
T
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T 12. 01
T (2, 1)
T (2. 21
T 12. 3)
NOTE: T ... vo·d imcnsional arrays can rapidly cat u p storage space. For example, a n array with 25
roi.vs and 35 colu mns uses 875 storage locations!
Arrays arc very powerful programming tools. For a more cornplete treatmerl( of arr· a ys, we
recommend sup ple men tary reading.
B. MORE ON CHARACTER STRINGS
B.1. D IMensio ning Strings
Cha ra c ter str'ings are linlited. by default , to si xteen ch aracte rs in length . By dimension ing a
character string it is possible to c reate a string
\Vhose
length is up to 80 characters. Reductions
in string length , to conserve memory space. arc a lso possih le.
Th e length of a strin g is specified in the DIMension st atement as follows:
DIM variable·narne (bound
) * le ngth
whe te:
variablc·namc is the name of t he character string array,
hound is the ma ximum subsc ript of the array,
length is th e length of e ach string within the .arr.av.
If only
one
stri ng is needed . a n array \vi th o ne element {subscripted as e lement zero)
may be
specified t o conserve memory space. This
is illustrated by the follo\•Jing
declaration
of a 26
chatacter string ;
D IM AS (0)
*
26
B.2.
Cone<1t enatio n
Se veral characte r strings (or cha racters w ithin charactcr ·variablcs) can be joined t o form a single
string. TI1is "add ing" of ch aracter st rings is called "concatenation". The form fo r c oncatenati on
is:
variable
=
Example 1:
charactcr·strin9
+
character·string
character·variable ch aracte r ·Variable
10 S$ = "SUPER"
20 TS = S$ + " MAN"
30 PR IN T TS
70
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