Here is my submission for HackerRank.com’s Simple Array Sum challenge. In it I used a foreach loop to add all of the values located in an array and return the result.
import java.io.*; import java.util.*; import java.text.*; import java.math.*; import java.util.regex.*; public class Solution { static int simpleArraySum(int n, int[] ar) { // Complete this function int runningTotal = 0; for(int number : ar) { runningTotal = runningTotal + number; } return runningTotal; } public static void main(String[] args) { Scanner in = new Scanner(System.in); int n = in.nextInt(); int[] ar = new int[n]; for(int ar_i = 0; ar_i < n; ar_i++){ ar[ar_i] = in.nextInt(); } int result = simpleArraySum(n, ar); System.out.println(result); } }