Logical operators in Swift - Mini Project: Build & Apply

Logical Operators in Swift

📖 Scenario: You are creating a simple app that decides if a person can enter a club based on their age and membership status.

🎯 Goal: Build a Swift program that uses logical operators to check if a person is allowed to enter the club.

📋 What You'll Learn

Create a variable for the person's age

Create a variable for membership status (true or false)

Use logical operators to check if the person is at least 18 years old and is a member

Print the result as a message

💡 Why This Matters

🌍 Real World

Logical operators help apps make decisions based on multiple conditions, like checking age and membership before allowing access.

💼 Career

Understanding logical operators is essential for programming roles that involve decision-making, such as app development and software testing.

1

Create variables for age and membership

Create a variable called age and set it to 20. Create a variable called isMember and set it to true.

Swift

# Create a variable called age and set it to 20
# Create a variable called isMember and set it to true

Need a hint?

Use var to create variables in Swift.

2

Create a variable for minimum age

Create a constant called minimumAge and set it to 18.

Swift

var age = 20
var isMember = true
# Create a constant called minimumAge and set it to 18

Need a hint?

Use let to create a constant in Swift.

3

Check if person can enter using logical operators

Create a variable called canEnter that is true only if age is greater than or equal to minimumAge and isMember is true. Use the logical AND operator &&.

Swift

var age = 20
var isMember = true
let minimumAge = 18
# Create a variable canEnter using logical AND to check age and membership

Need a hint?

Use && to combine two conditions that both must be true.

4

Print the result message

Write a print statement that shows "Allowed to enter" if canEnter is true, otherwise "Not allowed to enter". Use a simple if statement.

Swift

var age = 20
var isMember = true
let minimumAge = 18
var canEnter = (age >= minimumAge) && isMember
# Print "Allowed to enter" if canEnter is true, else print "Not allowed to enter"

Need a hint?

Use if canEnter { print(...) } else { print(...) } to show the message.