Loop with break in Rust - Mini Project: Build & Apply

Loop with break

📖 Scenario: You are writing a simple Rust program that counts numbers starting from 1. You want to stop counting once you reach a certain number.

🎯 Goal: Build a Rust program that uses a loop to count numbers starting from 1 and stops the loop using break when the count reaches 5.

📋 What You'll Learn

Create a variable called count and set it to 1

Create a variable called max_count and set it to 5

Use a loop to repeatedly print the current count

Inside the loop, use if and break to stop the loop when count is greater than or equal to max_count

Increase count by 1 each time the loop runs

Print the final message "Counting finished!" after the loop ends

💡 Why This Matters

🌍 Real World

Loops with break are used in programs to repeat tasks until a certain condition is met, like waiting for user input or processing data until done.

💼 Career

Understanding loops and break statements is essential for writing efficient and controlled code in many programming jobs.

1

Create the initial count variable

Create a variable called count and set it to 1.

Rust

# Your code here

Need a hint?

Use let mut count = 1; to create a variable that can change.

2

Add the max_count variable

Add a variable called max_count and set it to 5 below the count variable.

Rust

fn main() {
    let mut count = 1;
    # Your code here
}

Need a hint?

Use let max_count = 5; to set the stopping number.

3

Create the loop with break

Use a loop to repeatedly print the current count. Inside the loop, use if count >= max_count and break to stop the loop. Increase count by 1 each time the loop runs.

Rust

fn main() {
    let mut count = 1;
    let max_count = 5;

    # Your code here
}

Need a hint?

Use loop { ... } and inside it print count. Use if count >= max_count { break; } to stop. Increase count by 1 each time.

4

Print the final message after the loop

After the loop ends, print "Counting finished!".

Rust

fn main() {
    let mut count = 1;
    let max_count = 5;

    loop {
        println!("{}", count);
        if count >= max_count {
            break;
        }
        count += 1;
    }

    # Your code here
}

Need a hint?

Use println!("Counting finished!"); after the loop to show the final message.