Nested conditions in Rust - Mini Project: Build & Apply

Nested conditions

📖 Scenario: You are creating a simple program that checks a person's age and whether they have a membership card to decide if they can enter a club.

🎯 Goal: Build a Rust program that uses nested if conditions to check if a person is old enough and has a membership card to enter the club.

📋 What You'll Learn

Create a variable age with the exact value 20.

Create a variable has_membership with the exact value true.

Use nested if conditions to check if age is 18 or more and if has_membership is true.

Print "Access granted" if both conditions are true, otherwise print "Access denied".

💡 Why This Matters

🌍 Real World

Many places like clubs or websites check multiple rules before allowing access. Nested conditions help check these rules clearly.

💼 Career

Understanding nested conditions is important for writing programs that make decisions based on several factors, a common task in software development.

1

Create the initial variables

Create a variable called age and set it to 20. Also create a variable called has_membership and set it to true.

Rust

// Your code here

Need a hint?

Use let to create variables. For example, let age = 20;.

2

Add the first condition to check age

Inside the main function, add an if condition to check if age is greater than or equal to 18.

Rust

fn main() {
    let age = 20;
    let has_membership = true;
    // Add if condition to check if age is 18 or more
}

Need a hint?

Use if age >= 18 { } to check the age.

3

Add nested condition to check membership

Inside the if age >= 18 block, add another if condition to check if has_membership is true.

Rust

fn main() {
    let age = 20;
    let has_membership = true;
    if age >= 18 {
        // Add nested if to check has_membership
    }
}

Need a hint?

Use if has_membership { } inside the first if block.

4

Print access result based on conditions

Inside the nested if has_membership block, print "Access granted". Otherwise, print "Access denied" if either condition fails.

Rust

fn main() {
    let age = 20;
    let has_membership = true;
    if age >= 18 {
        if has_membership {
            // Print "Access granted"
        } else {
            // Print "Access denied"
        }
    } else {
        // Print "Access denied"
    }
}

Need a hint?

Use println!("Access granted"); and println!("Access denied"); in the right places.