Control Flow

let num = 5

if num > 0 {

print("Positive")

}

• Positive

• Negative

• 0

• Error

Which syntax is correct for an if statement in Swift?

• if x > 5 then { print(x) }

• if (x > 5) { print(x) }

• if x > 5: print(x)

• if x > 5 do { print(x) }

What will happen if the if condition is false and there is no else block?

• The if block still runs

• Nothing happens

• The program crashes

• It prints false

let fruit = "Mango"

switch fruit {

case "Apple", "Mango":

print("Sweet fruit")

default:

print("Other fruit")

}

• Sweet fruit

• Other fruit

• Apple

• Mango

Which is the correct way to use ranges in switch?

• 1 to 5

• 1...5

• 1->5

• range(1,5)

let x = 5

let y = 10

if x > 3 && y < 10 {

print("Case 1")

} else if x == 5 || y == 5 {

print("Case 2")

} else {

print("Case 3")

}

• Case 1

• Case 2

• Case 3

• Error

let number = 15

switch number {

case 1...10:

print("Small")

case 11...20:

if number % 2 == 0 {

print("Medium Even")

} else {

print("Medium Odd")

}

default:

print("Large")

}

• Small

• Medium Even

• Medium Odd

• Large

let char: Character = "b"

switch char {

case "a", "e", "i", "o", "u":

print("Vowel")

case "A"..."Z":

print("Uppercase Consonant")

default:

print("Lowercase Consonant")

}

• Vowel

• Uppercase Consonant

• Lowercase Consonant

• Error

let language = "Swift"

switch language.lowercased() {

case "swift":

print("Apple language")

case "python":

print("Data Science language")

default:

print("Other language")

}

• Apple language

• Data Science language

• Other language

• Error

let marks = 82

switch marks {

case 90...100:

print("A")

case 80..<90:

print("B")

default:

print("C")

}

• A

• B

• C

• Error