Simple Array Element Sum in Java

Problem:-

Given an array of integers, find the sum of its elements.

For example, if the array , , so return .

Function Description

Complete the simpleArraySum function in the editor below. It must return the sum of the array elements as an integer.

simpleArraySum has the following parameter(s):

• ar: an array of integers

Input Format

The first line contains an integer, , denoting the size of the array.
The second line contains  space-separated integers representing the array's elements.

Constraints

Output Format

Print the sum of the array's elements as a single integer.

Sample Input

6
1 2 3 4 10 11

Sample Output

31

Explanation

We print the sum of the array's elements: .

Solution:-

import java.io.*;

import java.math.*;

import java.text.*;

import java.util.*;

import java.util.regex.*;

public class Solution {

/*

* Complete the simpleArraySum function below.

*/

static int simpleArraySum(int[] ar) {

int arrayLength = ar.length;

int sum=0;

for (int arItr = 0; arItr < arrayLength; arItr++) {

sum+= ar[arItr];

}

return sum;

}

private static final Scanner scanner = new Scanner(System.in);

public static void main(String[] args) throws IOException {

BufferedWriter bufferedWriter = new BufferedWriter(new FileWriter(System.getenv("OUTPUT_PATH")));

int arCount = Integer.parseInt(scanner.nextLine().trim());

int[] ar = new int[arCount];

String[] arItems = scanner.nextLine().split(" ");

for (int arItr = 0; arItr < arCount; arItr++) {

int arItem = Integer.parseInt(arItems[arItr].trim());

ar[arItr] = arItem;

}

int result = simpleArraySum(ar);

bufferedWriter.write(String.valueOf(result));

bufferedWriter.newLine();

bufferedWriter.close();

}

}