Return the sum of the numbers in the array, returning 0 for an empty array. Except the number 13 is very unlucky, so it does not count and numbers that come immediately after a 13 also do not count. sum13({1, 2, 2, 1}) → 6 sum13({1, 1}) → 2 sum13({1, 2, 2, 1, 13}) → 6 public int sum13(int[] nums)

SumArray13.java

import java.util.Scanner;

public class SumArray13 {
	public static void main(String [] args) {

		Scanner input = new Scanner(System.in);

		int positions = input.nextInt();
		int[] myarray = new int[positions];

		for (int x = 0; x < myarray.length; x++) {
			myarray[x] = input.nextInt();
		}

		int sum = sum13(myarray);
		System.out.println(sum);
	}

	public static int sum13(int[] myarray) {
		int sum = 0;

		if (myarray.length == 0) {
			System.out.println(sum);
		} else {
			for (int i = 0; i < myarray.length; i++) {
				if (myarray[i] != 13) {
					sum = sum + myarray[i];
				} else if (myarray[i] == 13 && i < myarray.length - 1) {
					myarray[i] = 0;
					myarray[i + 1] = 0;
				}
			}
		}

		return sum;
	}
}