Variables

Question 1

How do you declare a Variable?

Answer 1

With the var-Keyword

Question 2

If you are clear about the kind of values the constant or variable can store, how do you provide a type annotation when you declare a variable?

Answer 2

Write a type annotation by placing a colon after the constant or variable name, followed by a space, followed by the name of the type to use.

Question 3

What represents whole Numbers and what is the keyword?

Answer 3

Integer - Int

Question 4

Which two Types represent floating-Numbers in Swift?

What is their keyword and Difference?

Answer 4

1. Double - Double - Represents a 64-bit floating-point number.
2. Float - Float - Represents a 32-bit floating-point number.

Question 5

How do you convert variables in different Types?

Answer 5

“Type”

eg.

Int(number)

Float(number)

Double(number)

Question 6

How do you concatenate a string with an variable?

Answer 6

” string…. (nameOfVaribale)”