Keep hitting error with the arraylist, dont know how can I fix it. And how to I impliment catch to the program? Thank you Code: package AverageProblem; import java.util.ArrayList; import java.util.Scanner; /** * Created by EdwardLai on 2/26/17. * * Write a program which calculates the average of N integers. The program should prompt the user to enter * the value of N. Afterwards the user must enter all N of the integers. If the user enters a non- positive * value for any of the integers, an exception should be thrown (and caught) with the message N must be positive. If there is any exception as the user is entering the N numbers, an error message should be displayed and the user prompted to enter the number again. Save your solution in Average.java. */ public class Average { private static int intergerNum; private static int loopcount=0; private static ArrayList array = new ArrayList(); static Scanner scanner= new Scanner(System.in); public static void main (String[] args) { System.out.println("This is a interger average calculator "); while(intergerNum != 9999) { System.out.println("Please input a positive interger: "); intergerNum = scanner.nextInt(); if(intergerNum != 9999) { checkPositive(intergerNum); array.add(loopcount,intergerNum); loopcount++; } } double sum = 0.0; for(int i : array ) { sum+=array.get(i); } System.out.println("The average is: "+ (double)(intergerNum/loopcount)); } public static void checkPositive(int num) { if (num   write a program which calculates the average of N integers. The program should prompt the user to enter the value of N. Afterwards the user must enter all N of the integers If the user enters a non- positive value for an of the integers, an exception should be thrown (and caught with the message "N must be positive." If there is any exception as the user is entering the N numbers, an error message should be displayed and the user prompted to enter the number again