/*
    This demonstrates the use of the ArrayList class
    This program implements project 3 using ArrayList
*/

// ArrayList is part of the java stanard API, it needs to be imported
import java.util.ArrayList;
import java.util.Scanner;

public class proj3AL {
    public static void main(String[] args) {

        int size = 0;       // how many values we'll be storing
        double sum = 0;     // running sum used to calculate average
        Scanner easy = new Scanner(System.in);

        // notice that ArrayList is declared before I know how many
        //   values we'll be reading.  ArrayList is dynamic.
        ArrayList values = new ArrayList();

        // ask the user how many values must be read, hold out for a good answer
        while(size <= 0) {
            System.out.println("Enter the number of values to read: ");
            size = easy.nextInt();
        }

        // ask the user for the values
        for(int i=0; i<size; i++) {
            System.out.println("Enter value #"+(i+1)+": ");
            double readVal = easy.nextDouble();

            // notice that I dont have to specify where the number should go
            // notice that I must create a Double object to hold the value
            values.add(new Double(readVal));
            
            sum += readVal;
        }

        // calculate the average
        double average = (sum/size);
        System.out.println("Average is: "+average);

        // print out numbers greater than the average
        for(int i=0; i<size; i++) {

            // notice I have to typecast the result to a Double
            Double temp = (Double)values.get(i);

            // then, I have to convert the Double object to a primitive for comparison
            if(temp.doubleValue() > average) {
                System.out.println(temp);
            }
        }
    }
}