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iOS Objective-C Basics (Retired) Functional Programming in C Control Flow - For Loops

Roger Green
Roger Green
643 Points
Posted by Roger Green
Roger Green
643 Points

I got lost.

Okay so I followed what was being said until he ran the print statement and got 2, 6, and 14. I understand what the for statement means but i don't understand how he got the sums from the for expression.

3 Answers

James Greer
James Greer
1,526 Points
James Greer
James Greer
1,526 Points

Hey Roger,

In the example they use 'sum += many[i];' so as the loop runs through the array, it adds the values.

eg:

  • i = 0 sum += many[0] 2 - (value at index 0 is 2 + sum which is 0 = 2 which is now set to the value of sum)
  • i = 1 sum += many[1] 6 - (value at index 1 which is 4 + sum which is now 2 = 6)
  • i = 2 sum += many[2] 14 - (value at index 2 is 8 + sum which is 6 = 14)

I hope that helps

Roger Green
Roger Green
643 Points
Roger Green
Roger Green
643 Points

You're a genius my friend thank you for your help.

Nicholas Grettler
Nicholas Grettler
1,037 Points
Nicholas Grettler
Nicholas Grettler
1,037 Points

I was looking for a further explanation of this and this was exactly the answer I was looking for! Thank you!

James Greer
James Greer
1,526 Points
James Greer
James Greer
1,526 Points

No problem guys. Glad I could help.