Welcome to the Treehouse Community

The Treehouse Community is a meeting place for developers, designers, and programmers of all backgrounds and skill levels to get support. Collaborate here on code errors or bugs that you need feedback on, or asking for an extra set of eyes on your latest project. Join thousands of Treehouse students and alumni in the community today. (Note: Only Treehouse students can comment or ask questions, but non-students are welcome to browse our conversations.)

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and a supportive community. Start your free trial today.

iOS Swift Basics (retired) Control Flow For-In Loop

John Moron
John Moron
1,658 Points

Use a for-in loop to print out a "7 times table". Your output should look like this: 1 * 7 = 7 2 * 7 = 14

Am I doing this right?

for_loops.swift
for number in 1...10 {Println("(number)times 7 table (number*7)")}

2 Answers

Chris Shaw
Chris Shaw
26,650 Points

Hi John,

You have a few issues with your code which are as follows:

  1. Your println declaration starts with an uppercase P, it should be lowercase
  2. You're not using interpolation which is required, this is achieved by simply adding a backslash before the parentheses
  3. Your overall string isn't correct, times should have a space before it and be * instead and table should be an equals sign.
for number in 1...10 {
  println("\(number) * 7 = \(number * 7)")
}

Happy coding!

AR Ehsan
AR Ehsan
7,912 Points

Thanks! For the help.

Keith Brantley
Keith Brantley
6,137 Points

I was stuck on this one too. its always a "smh" moment when you see how simple the answer is.