package com.company;

import java.util.Scanner;

public class Calculations {

    private int[] tab;
    private int numberOfVariables;

    private int max = Integer.MAX_VALUE;
    private int min = Integer.MIN_VALUE;
    private double sum = 0;
    private double average = 0;

    public int getMax() {
        return max;
    }

    public int getMin() {
        return min;
    }

    public void setMax(int max) {
        this.max = max;
    }

    public void setMin(int min) {
        this.min = min;
    }

    public void setSum(double sum) {
        this.sum = sum;
    }

    public double getSum() {
        return sum;
    }

    public void setNumberOfVariables(int numberOfVariables) {
        this.numberOfVariables = numberOfVariables;
    }

    public int getNumberOfVariables() {
        return numberOfVariables;
    }

    public void setAverage(double average) {
        this.average = average;
    }

    public double getAverage() {
        return average;
    }

    public void createTableForEnteringValue()
    {
        Scanner numberOfVariablesScan = new Scanner(System.in);
        setNumberOfVariables(numberOfVariablesScan.nextInt());
        tab = new int[numberOfVariables];
    }

    public void calculateEnteringValue()
    {
        Scanner valueScan = new Scanner(System.in);
        for (int i = 0; i < numberOfVariables; ++i) {
            Dialog.inputValue();
            tab[i] = valueScan.nextInt();

            setSum(sum += tab[i]);

            if (tab[i] < min) {
                setMin(tab[i]);
            }

            if (tab[i] > max) {
                setMax(tab[i]);
            }
        }

        setAverage(getSum() / getNumberOfVariables());
    }

    public void presentsResult()
    {
        System.out.println(String.format("Ilość podanych liczb: %d", getNumberOfVariables()));
        System.out.println(String.format("Max: %d", getMax()));
        System.out.println(String.format("Min: %d", getMin()));
        System.out.print(String.format("Średnia: %f", getAverage()));
    }
}

public class Dialog {

    static void isHowManyNumbersQuestion()
    {
        System.out.print("Ile liczb chcesz wczytać?: ");
    }

    static void inputValue()
    {
        System.out.print("Wprowadź liczbę: ");
    }

}

public class Main {
    public static void main(String[] args) {
        Calculations calculations = new Calculations();

        Dialog.isHowManyNumbersQuestion();
        calculations.createTableForEnteringValue();
        calculations.calculateEnteringValue();
        calculations.presentsResult();
    }
}