Ch 3: Intro to Classes, Objects, Methods and Functions

Question 1

What are the two Swift types for floating point?

==> P. 34

Answer 1

Two floating point types:

Float
Double

Question 2

What is the minimum number of significant digits in a Float type?

==> P. 34

Answer 2

Minimum number of significant digits in a Float type:

6

Question 3

What is the default floating point type used by Swift?

==> P. 34

Answer 3

Default floating point type used by Swift:

Double

Question 4

What is the minimum number of significant digits in a Double type?

==> P. 34

Answer 4

Minimum number of significant digits in a Double type:

15

Question 5

What class does Swift provide to handle money values precisely?

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Answer 5

NSDecimalNumber

Question 6

In what framework is the NSDecimalNumber class found?

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Answer 6

Foundation

Question 7

Provide an example of the format of a class declaration statement.

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Answer 7

public class Account {
    public var name : String = ""
    ...