I need some help with arrays...:P

[El-Trucha]

Hello everyone!!

OK...here's my code:

For $x = 1 To $classes ; $classes is a number...

Dim $class[$x] = InputBox("What grade?", "What's your grade for class #" & $x & "??")

$x + 1

Next

It tells me the following error when I get to that loop:

Line 18 (File "<not_gonna_tell_u>"):

Dim $class[$x] = InputBox("What grade?", "What's your grade for class #" & $x & "??")

Dim $class[$x] ^ ERROR

Error: Array variable subscript badly formatted.

Why is it giving me that??

Thanx!!

[CyberSlug]

You have to declare an array before you use it. By the way, arrays normally start with index 0 so Dim $array[10] would create elements 0 thru 9. If you want an element with index 10 you need to Dim $a[11].

Also, I'm not sure why you have $x + 1 in your For loop, because $x is incremented automatically and you don't assign the value back to anything.

Dim $class[$classes+1] 
For $x = 1 To $classes; $classes is a number...tongue.gif
   $class[$x] = InputBox("What grade?", "What's your grade for class #" & $x & "??")
Next

Edited December 5, 2004 by Larry

[Valik]

Larry, CyberSlug, theres probably no harm in the "Dim $class[$x]" you both left in the For loop, but I think its a very bad example to leave. There also may be a performance hit as a new array is Dim'ed every time before the array is overwritten by the InputBox() return value. Also, looking closer, Larry's code my not even run as Dim $array[0] is illegal, but that is what will happen during the first iteration of the loop.

[El-Trucha]

Yay it worked!!

Thanx u all!!

Now...I have another question: how do u make it return a decimal number with periods?? because:

1 + 3 + 2 + 1 = 7 / 4 = 1.75

And it just returns 1...

How do I fix that??

Thanx!!

[the_lord_mephy]

I just made one of those, it's in the scripts and scraps forum thing. =-o

[Jos]

Now...I have another question: how do u make it return a decimal number with periods?? because:

1 + 3 + 2 + 1 = 7 / 4 = 1.75

And it just returns 1...

How do I fix that??

Thanx!!

<{POST_SNAPBACK}>

when does it return only a 1 ? can you show the code that does ?

[El-Trucha]

Yes, here:

$x = 1

Dim $grade

For $x = 1 To $classes

$grade = $grade + $class[$x]

Next

$finalGrade = $grade / $classes

Or if u'd like to see the whole thing, it's in the attachment...

GPACalc.au3

[El-Trucha]

Nope, still get 1...thanx anyways...

[El-Trucha]

Yay it works!!

It says 1.75...thanx!!

But...I do this:

$finalGrade = $grade / $classes

MsgBox(4096, "", $finalGrade)

And it says the correct number, but then I do this:

$message = StringFormat("Your GPA is %d, that means you got a(n) %s!!", $finalGrade, $gradeLetter)

MsgBox(4096, "Your GPA...", $message)

Which is after the first code, and it says only 1!!

Why??

Thanx!!

[El-Trucha]

That's what I was doing!!

Yah, I tried %g and it worked!!

Much, much thanx!!