Start your competitive programming journey from here

Simple Array Sum

Question Link:https://www.hackerrank.com/challenges/simple-array-sum/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 sum=0;
      for(int i=0;i<ar.length;i++)
      {
          sum+=ar[i];
      }
      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();
    }
}