Character and String types in Swift - Mini Project: Build & Apply

Character and String types

📖 Scenario: You are creating a simple program to store and display information about a book's title and its first letter.

🎯 Goal: Build a Swift program that stores a book title as a String and its first letter as a Character, then prints both.

📋 What You'll Learn

Create a String variable with the exact book title

Create a Character variable with the exact first letter of the book title

Print both the String and the Character variables

💡 Why This Matters

🌍 Real World

Handling text data like names, titles, or single characters is common in apps, games, and websites.

💼 Career

Understanding how to work with strings and characters is essential for any Swift developer building user interfaces or processing text.

1

Create a String variable for the book title

Create a String variable called bookTitle and set it to the exact value "Swift Programming".

Swift

# Create a String variable called bookTitle and assign "Swift Programming"
# Your code here

Need a hint?

Use var to create a variable and assign the text with quotes.

2

Create a Character variable for the first letter

Create a Character variable called firstLetter and set it to the exact first letter "S" of the book title.

Swift

var bookTitle: String = "Swift Programming"
# Create a Character variable called firstLetter and assign "S"
# Your code here

Need a hint?

In Swift, Character values use double quotes around a single character, like "S".

3

Print the book title and first letter

Use two print statements to display the values of bookTitle and firstLetter variables.

Swift

var bookTitle: String = "Swift Programming"
var firstLetter: Character = "S"
# Print bookTitle
# Print firstLetter
# Your code here

Need a hint?

Use print(variableName) to show the value on the screen.

4

Combine and print a message

Use a single print statement with string interpolation to display: "The book title is Swift Programming and it starts with S."

Swift

var bookTitle: String = "Swift Programming"
var firstLetter: Character = "S"
print(bookTitle)
print(firstLetter)
# Print a combined message using string interpolation
# Your code here

Need a hint?

Use \(variableName) inside the string to insert variable values.