Loop execution flow in Rust - Mini Project: Build & Apply

Loop Execution Flow in Rust

📖 Scenario: You are helping a small bakery keep track of how many cakes they bake each day. They want to count cakes baked in a simple loop.

🎯 Goal: Build a Rust program that uses a loop to count cakes baked from 1 to 5 and then stops.

📋 What You'll Learn

Create a variable to count cakes baked

Use a loop to increase the count

Stop the loop when 5 cakes are counted

Print the final count

💡 Why This Matters

🌍 Real World

Counting repeated actions like baked cakes helps bakeries track production easily.

💼 Career

Understanding loop flow is key for programming tasks that repeat steps until a condition is met.

1

Create a cake counter variable

Create a variable called cakes_baked and set it to 0.

Rust

# Create a variable called cakes_baked and set it to 0
# Your code here

Need a hint?

Use let mut to create a variable you can change later.

2

Set up a loop to count cakes

Add a loop block inside main that will run repeatedly.

Rust

fn main() {
    let mut cakes_baked = 0;
    // Add a loop here
    // Your code here
}

Need a hint?

Use loop { } to create an infinite loop that you will control inside.

3

Increase the cake count and stop at 5

Inside the loop, add code to increase cakes_baked by 1 each time. Then use if cakes_baked == 5 to break the loop.

Rust

fn main() {
    let mut cakes_baked = 0;
    loop {
        // Increase cakes_baked by 1
        // Stop loop if cakes_baked is 5
        // Your code here
    }
}

Need a hint?

Use += 1 to add one to the count. Use break to stop the loop.

4

Print the final cake count

After the loop, write println!("Cakes baked: {}", cakes_baked); to show the total cakes baked.

Rust

fn main() {
    let mut cakes_baked = 0;
    loop {
        cakes_baked += 1;
        if cakes_baked == 5 {
            break;
        }
    }
    // Print the total cakes baked
    // Your code here
}

Need a hint?

Use println! to show the result on the screen.