THEN
BASIC keyword | |
Keyword: | THEN |
Abbreviation: | T, Shift+H |
Type: | Keyword part |
Token code: | 167/$A7 |
Handling routine in BASIC ROM: |
???–??? $????–???? |
List of all BASIC keywords |
Remark: This article describes the BASIC keyword THEN in BASIC V2 of the Commodore 64.
Type: Keyword part
In Commodore BASIC V2, the keyword THEN is used in contexts with a IF...THEN... construct.
Important: A THEN must not be part of a variable name, otherwise the BASIC error message ?SYNTAX ERROR IN line occurs.
Examples[edit | edit source]
- Numerical evaluation and subsequent assignment:
10 IF A>=B THEN C=A
- Numerical evaluation and output:
10 IF D<0 THEN PRINT "It's a negative number!"
40 GET A$: IF A$="" THEN 40
Remark: 40 GET A$: IF A$="" GOTO 40
is faster.
- For other examples see IF.
ABS | AND | ASC | ATN | CHR$ | CLOSE | CLR | CMD | CONT | COS | DATA | DEF | DIM | END | EXP | FN | FOR | FRE | GET | GET# | GOSUB | GOTO | IF | INPUT | INPUT# | INT | LEFT$ | LEN | LET | LIST | LOAD | LOG | MID$ | NEW | NEXT | NOT | ON | OPEN | OR | PEEK | π | POKE | POS | PRINT | PRINT# | READ | REM | RESTORE | RETURN | RIGHT$ | RND | RUN | SAVE | SGN | SIN | SPC | SQR | STATUS/ST | STEP | STOP | STR$ | SYS | TAB | TAN | THEN | TIME/TI | TIME$/TI$ | TO | USR | VAL | VERIFY | WAIT