Print function for output in Swift - Practice Problems & Coding Challenges

Challenge - 5 Problems

❓ Predict Output

intermediate

What is the output of this Swift print statement?

Look at the code below. What will it print when run?

Swift

print("Hello, \"Swift\" world!")

A Hello, 'Swift' world!

B Hello, "Swift" world!

C Hello, Swift world!

D Hello, \"Swift\" world!

💡 Hint

Remember how escape characters work in strings.

The backslash \ is used to escape the double quotes inside the string, so they appear as part of the output.

❓ Predict Output

intermediate

What does this Swift code print?

Check the code and choose the correct output.

Swift

let name = "Anna"
print("Hello, \(name)!")

A Hello, Anna!

B Hello, \(name)!

C Hello, name!

D Hello, (name)!

💡 Hint

Look at how Swift uses \(variable) inside strings.

Swift replaces \(name) with the value of the variable name, which is "Anna".

❓ Predict Output

advanced

What is the output of this Swift code with multiple print statements?

Analyze the code and select the correct output sequence.

Swift

print("Line 1")
print("Line 2", terminator: " ")
print("Line 3")

A

Line 1
Line 2 Line 3

B

Line 1 Line 2 Line 3

C

Line 1
Line 2
Line 3

D

Line 1 Line 2
Line 3

💡 Hint

Check how the terminator parameter changes the print behavior.

The second print uses terminator: " " which means it ends with a space instead of a new line, so Line 3 prints on the same line after a space.

❓ Predict Output

advanced

What will this Swift code print?

Consider the code and pick the correct output.

Swift

let number = 5
print("Number is \(number * 2)")

A Number is 5 * 2

B Number is number * 2

C Number is 10

D Number is \(number * 2)

💡 Hint

Swift evaluates expressions inside \( ) in strings.

The expression number * 2 is calculated to 10 and printed inside the string.

❓ Predict Output

expert

What is the output of this Swift code using multiline string and print?

Look carefully at the code and select the exact output.

Swift

let poem = """
Roses are red,
Violets are blue,
Swift is fun,
And so are you.
"""
print(poem)

A Roses are red,\nViolets are blue,\nSwift is fun,\nAnd so are you.

B Roses are red, Violets are blue, Swift is fun, And so are you.

C "Roses are red,\nViolets are blue,\nSwift is fun,\nAnd so are you."

D

Roses are red,
Violets are blue,
Swift is fun,
And so are you.

💡 Hint

Multiline strings keep line breaks as they are.

The multiline string preserves the line breaks and prints exactly as written.