Pass array to method return average

[Andrew Idzior]

Hi All,

I have tried several different ways of coding for the same task. However, the same Out of Bounds exception keeps appearing. The goal here is to pass an array to a method and have the method return the average of the array. But I can't even get the method to print the average - let alone return it. Here's the code, what's wrong here!? ... Thanks for your time.

import java.util.Scanner;
public class ArrayPractice
{
	public static void main(String[] args) 
	{	
		System.out.print("Enter the number of values to be in the array: ");
		Scanner input = new Scanner(System.in);
		
		int size = input.nextInt();
		int[] a = inputArray(size);
		int[] b = inputArray(size);
		
		for (int i=0; i<a.length; i++)
		{
			System.out.print(a[i] + " ");
		}
	//The addition of the code below into the main method causes an Out of Bounds exception
	//An attempt is made to pass an array to a method.
	//The method is expected to return a value for the average, but at this point, I would settle just to print it.
		calculateAverage(a);
	}
	//A method that returns an int array using user's inputs.
	public static int[] inputArray (int size)
	{		
		int length = size;
		int[] numbers = new int[length];
		
		for (int i=1; i<=numbers.length; i++)
		{
			numbers[i-1] = i;
		}
		return numbers;
	}	
	//A method that calculates and returns the average of a passed array.
	public static void calculateAverage (int[] list)
	{
		int average = 0;
		int total = 0;
		
		for (int i=0; i<=list.length; i++)
		{
			total += list[i];
		}		
		average = (total / list.length);
		System.out.println(average);

[Kemal Sokolovic]

for (int i=0; i<=list.length; i++) 

Here you are trying to access an element with index one larger than the last one. Index of the last element is list.length - 1.

And please put your code inside code tags.