Im writing a simple progam to cycke through text & text background colours. While I was successful with text colour itself but as soon as I added the third line in the screenshot to cycle through text background I been gettint the "FOR without NEXT at 0:7" error message.

Also I tried adding NEXT to line 7 & so far the program does nothing including no error message until I stop the program.

you need to put a second "Next" inside your Loop

I tried putting NEXT between the original NEXT & GOTO @LOOP & nothing happen didn't print out the "hello world" & no error message.

That's because your program is looping thousands of times per second, it needs a WAIT command to slow it down. WAIT 60 at the end of the loop would wait 1 second before looping again.

And yes, you need a NEXT directly after the first NEXT. You can't have a FOR loop without a NEXT. I recommend printing your loop variables so you can see what your nested loop is doing.

The reason it's not working is because of the step in your second loop: FOR Y=15 TO 0 STEP 1 SmileBASIC does not automatically go backwards here. Instead, it actually counts 15, 16, 17, 18... and won't end until it hits 0. The problem is, it never will, since it's counting up instead of down. Instead, you need this: FOR Y=15 TO 0 STEP -1 With a step of -1, it will subtract 1 from Y each loop.

Something else that might help is indenting your code. It makes code easier to read and makes it easier to tell where things begin and end: @LOOP FOR X=0 TO 15 STEP 1 FOR Y=15 TO 0 STEP -1 COLOR X,Y:PRINT "HELLO WORLD" NEXT NEXT GOTO @LOOP

Thanks & I got the program to work as how I wanted it now. Cheers.

(Oops, my info was slightly wrong. FOR Y=15 TO 0 STEP 1 doesn't loop forever, it actually skips the loop entirely. It ends when Y is greater than or equal to 0, and 15 is greater than 0 to begin with, which is why your code did nothing before.)

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