Array traversal in C - Mini Project: Build & Apply

Array traversal

📖 Scenario: You are working with a list of daily temperatures recorded over a week. You want to look at each temperature one by one to understand the weather pattern.

🎯 Goal: Build a simple C program that stores temperatures in an array and then goes through each temperature to print it out.

📋 What You'll Learn

Create an integer array named temperatures with exactly 7 values: 23, 25, 22, 20, 24, 26, 21

Create an integer variable days and set it to 7

Use a for loop with the variable i to traverse the temperatures array from index 0 to days - 1

Print each temperature value inside the loop using printf

💡 Why This Matters

🌍 Real World

Arrays are used to store lists of data like temperatures, scores, or names so you can easily access each item one by one.

💼 Career

Understanding how to traverse arrays is a basic skill needed in many programming jobs, including software development, data analysis, and embedded systems.

1

Create the temperatures array

Create an integer array called temperatures with these exact values: 23, 25, 22, 20, 24, 26, 21.

C

# Your code here

Need a hint?

Use curly braces {} to list the values inside the array.

2

Set the number of days

Create an integer variable called days and set it to 7.

C

int temperatures[7] = {23, 25, 22, 20, 24, 26, 21};
# Your code here

Need a hint?

Just create a simple integer variable and assign the number 7.

3

Traverse the array with a for loop

Use a for loop with the variable i to go from 0 to days - 1 and access each element of temperatures.

C

int temperatures[7] = {23, 25, 22, 20, 24, 26, 21};
int days = 7;
# Your code here

Need a hint?

Start i at 0 and continue while it is less than days.

4

Print each temperature

Inside the for loop, use printf to print each temperature from the temperatures array followed by a newline.

C

int temperatures[7] = {23, 25, 22, 20, 24, 26, 21};
int days = 7;
for (int i = 0; i < days; i++) {
    // Your code here
}

Need a hint?

Use printf("%d\n", temperatures[i]); to print each temperature on its own line.