HACKERRANK SOLUTION: ARRAY — DS

import java.io.*;
import java.math.*;
import java.security.*;
import java.text.*;
import java.util.*;
import java.util.concurrent.*;
import java.util.regex.*;
import org.apache.commons.lang3.ArrayUtils;

public class Solution {

static Integer[] reverseArray(Integer[] a) {
List<Integer> al = Arrays.asList(a);
Collections.reverse(al);
al.toArray(a);
return a;

}

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 arrCount = scanner.nextInt();
scanner.skip(“(\r\n|[\n\r\u2028\u2029\u0085])?”);

Integer[] arr = new Integer[arrCount];

String[] arrItems = scanner.nextLine().split(“ “);
scanner.skip(“(\r\n|[\n\r\u2028\u2029\u0085])?”);

for (int i = 0; i < arrCount; i++) {
int arrItem = Integer.parseInt(arrItems[i]);
arr[i] = arrItem;
}

Integer[] res = reverseArray(arr);

for (int i = 0; i < res.length; i++) {
bufferedWriter.write(String.valueOf(res[i]));

if (i != res.length — 1) {
bufferedWriter.write(“ “);
}
}

bufferedWriter.newLine();

bufferedWriter.close();

scanner.close();
}
}