Vezba 4 samostalni

Hotel
-----------
package hotel;

import java.util.Random;

public class Ulaz extends Thread {
    private Hotel h;
    private volatile boolean kraj = false;

    public Ulaz(Hotel h) {
        this.h = h;
    }

    public void smestiUHotel() {
        Random r = new Random();
        int vb = r.nextInt(8) + 1;
        Musterija m = new Musterija(vb);
        h.smesti(m);
    }

    public void run() {
        Random r = new Random();
        try {
            while (!kraj) {
                int interval = r.nextInt(1000) + 500;
                smestiUHotel();
                Thread.sleep(interval);
            }
            System.err.println("Simulacija hotela je završena. Nit Ulaz je ugašena!");
        }catch (InterruptedException e) { System.err.println("Nit Ulaz je pukla"); }
    }

    public void shutdown() {
        kraj = true;
    }
}
-------------------
Musterija
---------------------
package hotel;

public class Musterija {
    private int vremeBoravka;
    private static int uniqueid = 0;
    private int id;

    public Musterija(int vremeBoravka) {
        this.vremeBoravka = vremeBoravka;
        id = ++uniqueid;
    }

    public int getVremeBoravka() { return vremeBoravka; }
    public void smanjiDan() { vremeBoravka--; }

    public String toString() { return "[Musterija " + id +  " / b:" + vremeBoravka + "]"; }
}
-----------------
Hotel
------------------
package hotel;

public class Hotel extends Thread {
    private Musterija[] sobe;
    private int stanje = 0;
    private volatile boolean kraj = false;

    public Hotel(int kapacitet) {
        sobe = new Musterija[kapacitet];
    }

    public synchronized void smesti(Musterija m) {

        for(int i = 0; i < sobe.length; i++) {
            if(sobe[i] == null) {
                sobe[i] = m;
                stanje++;
                System.out.println(m + "je smešten u sobu " + i + ". Kapacitet: " + stanje + "/" + sobe.length );
                return;
            }
        }
        System.err.println("Kapacitet hotela je popunjen");
        notifyAll();
    }

    public synchronized void izbaci() {
        for(int i = 0; i < sobe.length; i++) {
            if(sobe[i] != null && sobe[i].getVremeBoravka() == 0) {
                stanje--;
                System.out.println(sobe[i] + " je napustio hotel. Stanje je: " + stanje + "/" + sobe.length);
                sobe[i] = null;
            } else if(sobe[i] != null) {
                sobe[i].smanjiDan();
                System.out.println("Prošao je dan za mušteriju." + sobe[i]);
            }
        }
        notifyAll();
    }

    public void run() {
        try {
            while (!kraj) {
                izbaci();
                Thread.sleep(1000);
            }

            System.err.println("Simulacija hotela je završena. Nit hotel je ugašena!");

        }catch (InterruptedException e) {
            System.err.println("Nit hotela je pukla!");
        }
    }

    public void shutdown() {
        kraj = true;
    }
}
------------------------
Main
------------------------
package program;
import hotel.*;

import java.util.Scanner;

public class Program {
    public static void main(String[] args) {
        System.out.println("Pritisnite taster ENTER za kraj programa! Program počinje za 5 sekundi");
        try {
            Thread.sleep(5000);
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
        Hotel h = new Hotel(5);
        h.start();
        Ulaz u = new Ulaz(h);
        u.start();

        Scanner s = new Scanner(System.in);
        s.nextLine();
        h.shutdown();
        u.shutdown();
    }
}