OS Lab 3.4 - GlasanjeServer

import java.io.IOException;
import java.io.PrintStream;
import java.net.ServerSocket;
import java.net.Socket;
import java.util.Scanner;
import java.util.concurrent.Semaphore;

public class GlasanjeServer {

    public static Semaphore granica = new Semaphore(100);

    public static void main(String[] args) throws IOException, InterruptedException {
        ServerSocket ss = new ServerSocket(9876);

        String[] kandidati = {"Petar Kostadinov", "Ilija Petkovski", "Trajce Trajkov", "Petar Petrov"};
        int[] glasovi = {0, 0, 0, 0};
        int brojach = 0;


        while (true) {
            granica.acquire();

            Socket s = ss.accept();
            Scanner sken = new Scanner(s.getInputStream());
            PrintStream ps = new PrintStream(s.getOutputStream());

            String paket = "";

            for (int z = 0; z < kandidati.length; z++) {
                int pom = z + 1;
                paket += kandidati[z] + " - " + pom + " | ";
            }
            ps.println(paket);

            int i = 0;
            try {
                i = sken.nextInt();
            }
            catch (Exception e){
                System.out.println("Ne odbravte kandidat");
                continue;
            }

            if (i <= kandidati.length) {
                glasovi[i - 1]++;
                brojach++;
            }
            else{
                System.out.println("Ne odbravte kandidat");
                continue;
            }

            System.out.println("Ostvareni se " + brojach + " glasanja.");
            System.out.println("Kandidatite imaat ");
            for (int j = 0; j < glasovi.length; j++) {
                System.out.println(kandidati[j] + " ima " + glasovi[j] + " glasa");
            }

            granica.release();
        }
    }
}