Swift Programming Course Assessment

Which of the following values would be best represented with a constant

• Name

• Age

• Location

• Score

Which of the following would be best represented with a variable?

• Name

• Birthday

• Age

• Address

Which keyword is used to declare a constant?

• const

• let

• var

Which keyword is used to declare a variable?

• const

• var

• let

Refers to the automatic detection of the data type of an expression in a programming language

• Function

• Variable

• Type

• Type Inference

Using type inference, which of the following variables would be assgined a Double type?

• var state = "Metro Manila"

• let country = "Philippines"

• let population = 1243456

• let speedLimit = 75.0

Will the code compile? Why?

let number : Double = 3

• Yes, because the compiler will assign the value 3.0 to number

• Yes, becuase 3 is a Double

• No, because 3 is not a Double

Identify the issue with the code snippet below:

let x = 14

let y = 2.5

let result = x * y

• The code will not compite. x is a Double and y is an Int.

• The code will not compile. x is an Int and y is a Double

• There is no issue. result will equal the product of x and y.

What is the operator called when it has an arithmetic symbol in front of the equals sign = ?

myScore += 100

• Assignment operator

• Compound assignment operator

• Plus equals operator

• Reset operator

Which of the following logical operators meand "equals"

• =

• ==

• !=

• >=