Break statement behavior in C Sharp (C#) - Mini Project: Build & Apply

Break Statement Behavior

📖 Scenario: Imagine you are checking a list of daily temperatures to find the first day when the temperature reaches or exceeds a certain limit. Once you find that day, you want to stop checking further to save time.

🎯 Goal: You will write a program that uses a break statement inside a for loop to stop the loop early when a condition is met.

📋 What You'll Learn

Create an array called temperatures with the exact values: 23, 25, 28, 30, 27, 31, 29

Create an integer variable called threshold and set it to 30

Use a for loop with the variable i to iterate over temperatures

Inside the loop, use an if statement to check if temperatures[i] is greater than or equal to threshold

Use the break statement to exit the loop when the condition is true

After the loop, print the index i where the temperature first reached or exceeded the threshold

💡 Why This Matters

🌍 Real World

Checking sensor data or daily measurements to find the first occurrence of a critical value quickly.

💼 Career

Understanding how to stop loops early is important for writing efficient programs in many software development jobs.

1

Create the temperature data array

Create an integer array called temperatures with these exact values: 23, 25, 28, 30, 27, 31, 29.

C Sharp (C#)

// Your code here

Need a hint?

Use int[] temperatures = { ... }; to create the array with the exact numbers.

2

Set the temperature threshold

Create an integer variable called threshold and set it to 30.

C Sharp (C#)

int[] temperatures = {23, 25, 28, 30, 27, 31, 29};
// Your code here

Need a hint?

Use int threshold = 30; to create the threshold variable.

3

Use a for loop with break to find the first day reaching threshold

Write a for loop with the variable i to iterate over temperatures. Inside the loop, use an if statement to check if temperatures[i] is greater than or equal to threshold. Use the break statement to exit the loop when this condition is true.

C Sharp (C#)

int[] temperatures = {23, 25, 28, 30, 27, 31, 29};
int threshold = 30;
// Your code here

Need a hint?

Use for (i = 0; i < temperatures.Length; i++) and inside it check if (temperatures[i] >= threshold) then break;.

4

Print the index where threshold was reached

Write a Console.WriteLine statement to print the value of i, which is the index where the temperature first reached or exceeded the threshold.

C Sharp (C#)

int[] temperatures = {23, 25, 28, 30, 27, 31, 29};
int threshold = 30;
int i;
for (i = 0; i = threshold)
    {
        break;
    }
}
// Your code here

Need a hint?

Use Console.WriteLine(i); to print the index.