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 Practicing with Immersive Examples Immersive Examples Code Challenge

Posted by Shanequa Bond
Shanequa Bond
18,447 Points

help please? i cannot figure this task out!

Challenge Task 3 of 3

Create a while loop that will run as long as 'rubies' is less than 'rubyMax'. During each iteration of the loop, increment 'rubies' by 'rubyReward'. When the loop completes, assign a value of true to 'levelFinished'.

variable_assignment.mm 
bool levelFinished;
int rubies=0;
int rubyReward=7;
int rubyMax=50;

1 Answer

Anish Walawalkar
Anish Walawalkar
8,534 Points
Anish Walawalkar
Anish Walawalkar
8,534 Points

there you go

bool levelFinished;
int rubies=0;
int rubyReward=7;
int rubyMax=50;

while (rubies < rubyMax) {
  rubies += rubyReward;
}

levelFinished = true;
Rich Braymiller
Rich Braymiller
7,119 Points
Rich Braymiller
Rich Braymiller
7,119 Points

just wondering what this does again "rubies += rubyReward" ? Kind of foggy about that...

Anish Walawalkar
Anish Walawalkar
8,534 Points
Anish Walawalkar
Anish Walawalkar
8,534 Points

its just a shorthand operator

its equivalent to doing:

rubies = rubies + rubyReward