/**
 * Print statistics from an array
 */
import java.util.*;

public class Stats
{
    public static void main(String [] args)
    {
        Scanner keyboard = new Scanner(System.in); 
        double sum = 0;
        int i = 0;
        double minimum = 0;
        double maximum = 0;

        // ask user for a size
        System.out.print("Enter size: ");
        int size = keyboard.nextInt();
        
        // declare and instantiate (create) the array's storage
        double [] num = new double [size];
        System.out.println("num.length = " + num.length);
        
        // get data from keyboard
        for (i = 0; i < num.length; i++)
        {
            System.out.print("Enter number " + (i + 1) + ": ");
            num[i] = keyboard.nextDouble(); 
        }
        
        // add all entries to sum
        for (i = 0; i < num.length; i++)
        {               
            sum = sum + num[i];
        }        
        
        // find minimum
        for (i = 0; i < num.length; i++)
        {
            if (i == 0 || num[i] < minimum)
                minimum = num[i];
        }        
        
        // find maximum
        for (i = 0; i < num.length; i++)
        {
            if (i == 0 || num[i] > maximum)
                maximum = num[i];                
        }                
        double average = findAvg(sum,i);
        System.out.println("sum = " + sum);
        System.out.println("average = " + average);
        System.out.println("minimum = " + minimum);
        System.out.println("maximum = " + maximum);
    }
    
    // Given sum and count, find average and return
    public static double findAvg (double s, int count)
    {
        double average = s / count;
        return average;
    }
}