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iOS Swift 2.0 Basics Swift Types Recap: Swift Types

Posted by Ary de Oliveira
Ary de Oliveira
Courses Plus Student 28,304 Points

Swift 2.0 challenge task 2 of 2 Why this no work?

Challenge Task 2 of 2

Given these two values we just declared, we want to compute the product and print out the product in a formatted string.

Step 1: Declare a constant named product and assign the result of multiplying firstValue and secondValue together. (To multiply two values, a and b, we write a * b).

Step 2: Using string interpolation, create a string literal that describes the operation we just performed. For example, given the following values for firstValue, secondValue and product respectively: 2, 4, 8. The string should read: "The product of 2 times 4 is 8". Assign this string to a constant named output.

// Enter your code below

let firstValue = 1 let secondValue = 3

let product = result a * b let a = 2 let b = 4

Bummer make sure the string literal you creating is assigned to a constante called output? Why?

types.swift 
// Enter your code below
justin peralta
justin peralta
1,598 Points
  1. First assign values to firstValue and secondValue.

let firstValue = 2 let secondValue = 5

  1. Then declare a constant named product. And assign the result multiplying firstValue times secondValue with. This will result in 10 if you use the numbers I used.

let product = firstValue * secondValue

  1. Declare a constant named output. Use string interpolation so the string reads : "The product of 2 times 5 is 10".

let output = " The product of (firstValue) times (secondValue) is (product)"

// Final result should be "The product of 2 times 5 is 10"

Hope I helped :)

5 Answers

tomkosina
tomkosina
16,232 Points

let output = "The product of (firstValue) times (secondValue) is (product)"

Don't forget to use \ backslash in front of values.

Michael Dussie
Michael Dussie
1,891 Points
Michael Dussie
Michael Dussie
1,891 Points 
let firstValue: Int = 100
let secondValue: Int = 200
let product: Int = (firstValue*secondValue)
let output: String = "The product of \(firstValue) times \(secondValue) is \(product)."
Kevin McKew
Kevin McKew
2,977 Points

Having trouble with this... is this code correct?

Saia Fonua
Saia Fonua
1,338 Points

thank you!

Nate Grant
Nate Grant
23,695 Points
Nate Grant
Nate Grant
23,695 Points

You need to use string interpolation in order for this to pass through. Check this out:

let output = "The product of (firstValue) times (secondValue) is (product)"

Tito Campos
Tito Campos
5,183 Points
Tito Campos
Tito Campos
5,183 Points

It should be like this:

let firstValue = 2
let secondValue = 4

let product = firstValue * secondValue

let output = "The product of \(firstValue) times \(secondValue) is \(product)"
Shohruhbek Yakubov
Shohruhbek Yakubov
403 Points
Shohruhbek Yakubov
Shohruhbek Yakubov
403 Points

let firstValue: Int = 20 let secondValue: Int = 40 let product: Int = (firstValue * secondValue) let output: String = "The product of (firstValue) times (secondValue) is (product)."