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iOS Objective-C Basics (Retired) Fundamentals of C Arrays

Posted by David Perez
David Perez
355 Points

What does it mean by Index 0?

I am doing an Objective C challenge for Arrays and on Task 2 of 4 it says "Index 0". What does that mean?

arrays.c 
float math_constants [ ] = {21,69};

1 Answer

Damien Watson
Damien Watson
27,419 Points
Damien Watson
Damien Watson
27,419 Points

Hey David, Arrays are a group of elements and to access these elements, you use an index number. With arrays the index starts at 0 instead of 1, so 'index 0' would be the first element (with value of 21 in your case).