/*
Marty Stepp, CSE 142, Autumn 2009
Reads temperatures from the user, computes average and # days above average.
The purpose of the program is to demonstrate basic usage of arrays.

Example output:

How many days' temperatures? 7
Day 1's high temp: 45
Day 2's high temp: 44
Day 3's high temp: 39
Day 4's high temp: 48
Day 5's high temp: 37
Day 6's high temp: 46
Day 7's high temp: 53
Average temp = 44.6
4 days were above average.
Two coldest days: 37, 39
*/

import java.util.*;   // for Scanner

public class Weather {
    public static void main(String[] args) {
        Scanner console = new Scanner(System.in);
        System.out.print("How many days' temperatures? ");
        int days = console.nextInt();
        
        // read each day's temperature and store it into the array
        int[] weather = new int[days];
        int sum = 0;
        for (int i = 0; i < weather.length; i++) {
            System.out.print("Day " + (i + 1) + "'s high temp: ");
            weather[i] = console.nextInt();
            sum += weather[i];
        }
        double average = (double) sum / days;
        System.out.println("Average temp = " + average);
        
        // compute how many days were above average
        int aboveAverage = 0;
        for (int i = 0; i < weather.length; i++) {
            if (weather[i] > average) {
                aboveAverage++;
            }
        }
        System.out.println(aboveAverage + " days were above average.");
        
        // figure out the two coldest days by sorting the array
        // (the smallest two values will be at the front now)
        Arrays.sort(weather);
        System.out.println("Two coldest days: " + weather[0] + ", " + weather[1]);
    }
}