package ipaddress;

import java.util.StringTokenizer;
import javax.swing.JOptionPane;
import java.lang.Math;

public class Main {

    public static void main(String[] args) {
        String adres = "";
        adres = JOptionPane.showInputDialog("Podaj adres wraz z maską sieci");
        StringTokenizer adres1 = new StringTokenizer(adres, "./");
        int ileSieci = Integer.parseInt(JOptionPane.showInputDialog("Podaj liczbę podsieci"));
        int ileHostow = Integer.parseInt(JOptionPane.showInputDialog("Podaj liczbę hostów"));
        int p1 = 0;
        int p2 = 0;
        int p3 = 0;
        int p4 = 0;
        int mask = 0;
        if (adres1.hasMoreTokens()) {
            p1 = Integer.parseInt(adres1.nextToken());
            System.out.println(p1);
        }
        if (adres1.hasMoreTokens()) {
            p2 = Integer.parseInt(adres1.nextToken());
            System.out.println(p2);
        }
        if (adres1.hasMoreTokens()) {
            p3 = Integer.parseInt(adres1.nextToken());
            System.out.println(p3);
        }
        if (adres1.hasMoreTokens()) {
            p4 = Integer.parseInt(adres1.nextToken());
            System.out.println(p4);
        }
        if (adres1.hasMoreTokens()) {
            mask = Integer.parseInt(adres1.nextToken());
            System.out.println(mask);
            if (mask == 8) {
                System.out.println("klasa A");
            } else if (mask == 16) {
                System.out.println("klasa B");
            } else if (mask == 24) {
                System.out.println("klasa C");
                int potega = 1;
                int jakaPotega = 8;
                while (potega < ileSieci) {
                    potega *= 2;
                    jakaPotega--;
                }
                potega -= 2;
                int koniec = (int) (256 - (Math.pow(2, jakaPotega)));
                String maskaPodsieci = 255 + "." + 255 + "." + 255 + "." + koniec;
                System.out.println(maskaPodsieci);
                int ile = 0;
                for (int i = 0; i < ileSieci; i++) {
                    System.out.println("Adres sieci:\n" + p1 + "." + p2 + "." + p3 + "." + ile);
                    System.out.println("Adresy hostów:\n");
                    for (int j = 1; j < ileHostow; j++) {
                        System.out.println(p1 + "." + p2 + "." + p3 + "." + j);
                    }
                    System.out.println("Adres Broadcastu:\n" + p1 + "." + p2 + "." + p3 + "." + ileHostow);
                }
            } else {
                System.out.println("Podałeś złą maskę");

            }
        }
    }
}