Find Sum of all elements in an Array

In this article, we will go through code examples which help in finding sum of all elements present in an array. The intent of this article is to help understand various concepts in arrays, so we avoid using ready made functions like sum etc and instead use array iteration/traversal to find out the sum.


#include <stdio.h>

int main() {
    // Create an array with numbers
    int numbers[] = {1, 2, 3, 4, 5};
    
    // Calculate the number of elements in the array
    int count = sizeof(numbers) / sizeof(numbers[0]);
    
    // Initialize a variable to store the sum
    int sum = 0;

    // Loop through each number in the array
    for (int i = 0; i < count; i++) {
        // Add the current number to the sum
        sum += numbers[i];
    }

    // Display the sum of all numbers in the array
    printf("The sum of all numbers in the array is: %d\n", sum);

    return 0;
}


def main():
    # Create an array with numbers
    numbers = [1, 2, 3, 4, 5]
    
    # Initialize a variable to store the sum
    total = 0

    # Loop through each number in the array
    for number in numbers:
        # Add the current number to the sum
        total += number

    # Display the sum of all numbers in the array
    print("The sum of all numbers in the array is:", total)

if __name__ == "__main__":
    main()


function main() {
    // Create an array with numbers
    const numbers = [1, 2, 3, 4, 5];
    
    // Initialize a variable to store the sum
    let total = 0;

    // Loop through each number in the array
    for (let i = 0; i < numbers.length; i++) {
        // Add the current number to the sum
        total += numbers[i];
    }

    // Display the sum of all numbers in the array
    console.log("The sum of all numbers in the array is:", total);
}

main();


public class Main {
    public static void main(String[] args) {
        // Create an array with numbers
        int[] numbers = {1, 2, 3, 4, 5};
        
        // Initialize a variable to store the sum
        int total = 0;

        // Loop through each number in the array
        for (int i = 0; i < numbers.length; i++) {
            // Add the current number to the sum
            total += numbers[i];
        }

        // Display the sum of all numbers in the array
        System.out.println("The sum of all numbers in the array is: " + total);
    }
}