Welcome to the Treehouse Community

Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.

Start your free trial

iOS Objective-C Basics Scope and Loops Review Scope and Loops

Can't find my syntax error in this for loop.

The directions for this exercise are: Create a for loop that will begin with a value of 5 and end with a value of 25. In each iteration, add the incrementing value to mathTotal. When the loop has finished running, set 'isComplete' to true. (HINT: the last value used INSIDE the loop should be 25)

I'm having a hard time spotting what is wrong with my syntax and what I need to correct. Should I be adding an if statement to ask something like: if mathTotal is equal to 25 then isComplete = YES?

variable_assignment.mm
int mathTotal;
bool isComplete;

for (mathTotal = 5; mathTotal < 25; mathTotal++)
{
    isComplete = YES;
}

1 Answer

Keli'i Martin
Keli'i Martin
8,227 Points

The key here is this sentence: "In each iteration, add the incrementing value to mathTotal." Basically, you don't want to use mathTotal as the counter in the for loop. Instead, do something like this:

for (int i = 5; i <= 25; i++)

Then you can use i to add to mathTotal inside the loop.

Hope this helps!

Thank you! It worked after I added the i into mathTotal inside the loop, but only after I added the equal sign to the less than symbol. It did say that it needed to end with 25, so I suppose I should have read that a bit more closely.

Thanks again.