Standard Arrays Problem 1

import java.util.Scanner;

public class Array
{
    public static void main(String[] args)
    {
        Scanner keyboard = new Scanner(System.in);
        System.out.println("How many numbers do you want to enter?");
        System.out.print("> ");
        int length = Integer.parseInt(keyboard.nextLine());
        double[] numbers = new double[length];
        //Enter the numbers one at a time.
        System.out.println("Enter each of the numbers.");
        for(int i = 0; i < length; i++);
        {
            System.out.print((i+1) + ">  ");
            numbers[i] = Double.parseDouble(keyboard.nextLine());
        }

        double average = 0;
        System.out.print("You entered:\n{");
        for(int i = 0; i < length; i++)
        {
            if(i > 0)
                System.out.print(",");

            System.out.print(" " + numbers[i]);
            average += numbers[i];
        }
        System.out.println(" }");

        average /= length;

        System.out.println("The Average is " + average);
    }
}