What is Swift - Hands-On Activity

What is Swift

📖 Scenario: You want to learn about Swift, a programming language used to create apps for Apple devices like iPhones and Macs.

🎯 Goal: Understand what Swift is and see a simple example of Swift code that prints a message.

📋 What You'll Learn

Create a variable with a welcome message about Swift

Create a constant with the year Swift was introduced

Write a function that prints the welcome message

Call the function to show the message

💡 Why This Matters

🌍 Real World

Swift is used by developers to create apps for iPhones, iPads, Macs, Apple Watches, and Apple TVs.

💼 Career

Knowing Swift is important for jobs in app development for Apple platforms, which are popular worldwide.

1

Create a welcome message variable

Create a variable called welcomeMessage and set it to the string "Welcome to Swift programming!"

Swift

// Create a variable called welcomeMessage and set it to "Welcome to Swift programming!"
// Your code here

Need a hint?

Use var to create a variable and assign the string with =.

2

Add a constant for Swift's introduction year

Create a constant called swiftYear and set it to the number 2014

Swift

var welcomeMessage = "Welcome to Swift programming!"
// Create a constant called swiftYear and set it to 2014
// Your code here

Need a hint?

Use let to create a constant and assign the number 2014.

3

Write a function to print the welcome message

Write a function called showWelcome that prints the variable welcomeMessage

Swift

var welcomeMessage = "Welcome to Swift programming!"
let swiftYear = 2014
// Write a function called showWelcome that prints welcomeMessage
// Your code here

Need a hint?

Use func to define the function and print() to show the message.

4

Call the function to display the message

Call the function showWelcome() to print the welcome message

Swift

var welcomeMessage = "Welcome to Swift programming!"
let swiftYear = 2014

func showWelcome() {
    print(welcomeMessage)
}
// Call showWelcome() to print the message
// Your code here

Need a hint?

Just write showWelcome() to run the function.