Data types (Int, Double, String, Bool) in iOS Swift - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to declare an integer variable named count with value 10.

iOS Swift

var count: [1] = 10

Drag options to blanks, or click blank then click option'

AInt

BBool

CString

DDouble

Attempts:

3 left

💡 Hint

Common Mistakes

Using Double instead of Int for whole numbers.

Using String when a number is needed.

The type Int is used for whole numbers in Swift.

2fill in blank

medium

Complete the code to declare a variable price with a decimal value 9.99.

iOS Swift

var price: [1] = 9.99

Drag options to blanks, or click blank then click option'

ADouble

BBool

CInt

DString

Attempts:

3 left

💡 Hint

Common Mistakes

Using Int for decimal numbers causes errors.

Using Bool or String instead of a number type.

The type Double is used for decimal numbers in Swift.

3fill in blank

hard

Fix the error in the code by choosing the correct type for the variable isActive.

iOS Swift

var isActive: [1] = true

Drag options to blanks, or click blank then click option'

AInt

BBool

CDouble

DString

Attempts:

3 left

💡 Hint

Common Mistakes

Using String or Int for boolean values.

Using Double instead of Bool.

The type Bool is used for true or false values in Swift.

4fill in blank

hard

Fill both blanks to declare a variable greeting with a text value.

iOS Swift

var greeting: [1] = [2]

Drag options to blanks, or click blank then click option'

AString

B"Hello"

CBool

D10

Attempts:

3 left

💡 Hint

Common Mistakes

Not using quotes around text values.

Using Bool or Int types for text.

The type String is used for text. Text values must be in quotes.

5fill in blank

hard

Fill all three blanks to declare a variable temperature with a decimal value and print it.

iOS Swift

var [1]: [2] = [3]
print(temperature)

Drag options to blanks, or click blank then click option'

Atemperature

BDouble

C36.6

DInt

Attempts:

3 left

💡 Hint

Common Mistakes

Using Int instead of Double for decimal values.

Using wrong variable name.

Declare a variable named temperature of type Double with value 36.6. Then print it.