READ

From C64-Wiki

BASIC keyword
Keyword:	READ
Abbreviation:	R, Shift+E
Type:	Command
Token code:	135/$87
Handling routine in BASIC ROM:	44038–44283 $AC06–ACFB
List of all BASIC keywords

Remark: This article describes the BASIC-Command READ in BASIC V2 at the Commodore 64.

Typ: Command
General Programming-Syntax: READ <variable> [,<variable>]

The BASIC-command READ is using for reading constant informations from DATA-lines into the indicated variable. It can be readed more constants with one READ-command also seperated through commas.

By using the wrong type of variable (for example read a char into a numerical variable like floating point or integer) the BASIC-error ?SYNTAX ERROR IN line occurr with a reference of corresponding DATA-line. When general used string variables for reading these BASIC-error can be avoided. When more constants are reading than data informations are written in the DATA-lines the BASIC-error ?OUT OF DATA IN Zeilennummer appear.

The BASIC-command RESTORE clear the pointer for the next DATA-constant. The next read begins by the first DATA-constant !

[edit] Examples

10 DATA 1,2,3,Apple,"Commodore 64" 
20 READ A
30 READ B%, C, D$
40 READ E$
50 PRINT A, B%, C, D$, E$

10 FOR X=0 TO 10: READ A(X): PRINT A(X),;:NEXT
20 DATA 10,20,30,40,50,60,70,80,90,100,110