Commodore PET - Get

var$
100 FOR 1= 0 Ta 10 STEP 0.5
155
NEXT
250 FOR 1 = 1 Ta 5
260
FOR J = A Ta B
300 NEXT I.J same as 300 NEXT 1 same as 300 NEXT
310 NEXT J 310 NEXT
GET
The GET statement inputs one character from the keyboard into a program.
Format:
GET var$
where:
is a string variable into which the input
character is to be stored.
When a GET statement is executed. it sets the specified string variable to
nul!. Any previous value of the variable is lost. Then it fetches the next character
from the keyboard butter and assigns
it to the specified string variable. If the
keyboard butter
is empty. the variable remains nul!.
GET can be used to handle one-character responses from the keyboard. It
has an advantage over INPUT in that the PET does not intercede when the
RETURN key is struck; the RETURN key is passed to the program as a value (CHR$
(13)) just like any other key. Because of fast program execution, vou will need to
program a
particular sequence so that the GET command will wait until a key has
been pressed
at the keyboard. The common program sequence incorporates a
check for a nul! character; if the null character
is found. return to the GET state-
ment. and then check the variable value aga in; if any character
is found. proceed
with the main program. This sequence is shown in the example below.
The
GET statement is valid only in program mode.
Example:
10 GET C$:IF C$ = "" GOTO 10
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