//ArraySum.java -sum the elements in an array and
//compute their average

import java.util.*;

class ArraySum {

    public static void main(String [] args) {

        int[] data;
        int sum = 0;
        double average;
	int arrayLength;
	Scanner in = new Scanner(System.in);

	System.out.print("How many numbers?");
	arrayLength = in.nextInt();

	data = new int[arrayLength];

	for(int i = 0; i < data.length; i++) {
	    System.out.print("Enter number " + i + ": ");
	    data[i] = in.nextInt();
	}	

        for (int i = 0; i < data.length; i++) {
            sum = sum + data[i];
            System.out.println("data[" + i + "] = "+ data[i] + "sum = " + sum);
        }

        average = (double)sum / data.length;

        System.out.println("\n\nsum = " + sum 
			   + ", average = " + average);
    }
}