package homero;

import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.util.ArrayList;
import java.util.Random;

import homero.Homrseklet.mertekegyseg;

public class HoProba {

    public static void main(String[] args) throws Exception {
        BufferedReader be = new BufferedReader(new InputStreamReader(System.in));
        double n, n2, r, r2;
        String b, b2;

        System.out.println("Kérem adja meg a hőmérsékletet:");
        n = Double.parseDouble(be.readLine());
        b = be.readLine().toUpperCase();

        System.out.println("Kérem adja meg a 2.hőmérsékletet:");
        n2 = Double.parseDouble(be.readLine());
        b2 = be.readLine().toUpperCase();

        r = Math.random() * 101 + 0;
        r2 = Math.random() * 101 + 0;
        Homrseklet one = new Homrseklet(n, mertekegyseg.valueOf(b));
        Homrseklet two = new Homrseklet(n2, mertekegyseg.valueOf(b2));
        Homrseklet three = new Homrseklet(r);
        Homrseklet four = new Homrseklet(r2);

        ArrayList<Homrseklet> temperatures = new ArrayList<Homrseklet>();
        temperatures.add(one);
        temperatures.add(two);
        temperatures.add(three);
        temperatures.add(four);

        System.out.println("tomb elemeinek listázása:");
        for (Homrseklet temp : temperatures) {
            System.out.println(temp);
        }

        System.out.println("koverzió:");
        double ertek = Homrseklet.konvHomerseklet(n, mertekegyseg.valueOf(b));
        System.out.println(one + "= " + ertek + " " + mertekegyseg.KELVIN);
        ertek = Homrseklet.konvHomerseklet(n2, mertekegyseg.valueOf(b2));
        System.out.println(two + "= " + ertek + " " + mertekegyseg.CELSIUS);

        System.out.print("Átlag hómérséklet: " + AVG(temperatures) + " Kelvin");
    }

    public static double AVG(ArrayList<Homrseklet> active) {
        double sum = 0;
        for (Homrseklet temp : active) {
            if (temp.getEgyseg() == mertekegyseg.CELSIUS) {
                temp.konvHomerseklet(temp.getTemperature(), mertekegyseg.CELSIUS);
            }
        }
        for (int i = 0; i < active.size(); i++) {
            sum += active.get(i).getTemperature();
        }
        double avg = sum / active.size();
        return avg;
    }

}
//CLASS
package homero;

public class Homrseklet {
    private double temperature;

    public enum mertekegyseg {
        CELSIUS, KELVIN
    };

    private mertekegyseg egyseg;

    public Homrseklet(double temperature, mertekegyseg mert) {

        this.temperature = temperature;
        this.egyseg = mert;
    };

    public Homrseklet(double temperature) {

        this.temperature = temperature;
        this.egyseg = mertekegyseg.CELSIUS;
    }

    @Override
    public String toString() {
        return "Homrseklet [temperature=" + temperature + ", egyseg=" + egyseg + "]";
    }

    public double getTemperature() {
        return temperature;
    }

    public mertekegyseg getEgyseg() {
        return egyseg;
    }

    public void setEgyseg(mertekegyseg egyseg) {
        this.egyseg = egyseg;
    }

    public void setTemperature(double temperature) {
        this.temperature = temperature;
    }

    public static double konvHomerseklet(double temperature, mertekegyseg mert) {
        double ertek = 0;
        if (mert == mert.CELSIUS) {
            ertek = temperature + 273.15;
        } else if (mert == mert.KELVIN) {
            ertek = temperature - 273.15;
        }
        return ertek;
    }

}