Vezbe 4 OBP2

Kupac
----------------
public class Kupac extends Thread{
    private String ime;
    private Magacin m;
    private int vreme;
    private boolean radi;

    public Kupac(String ime, Magacin m, int vreme){
        this.ime=ime;
        this.m=m;
        this.vreme=vreme;
        this.radi=true;

    }

    public void run(){
        while (radi){
            System.out.println(ime + " inicira kupovinu...");
            if(m.kupi(6))
                System.out.println(ime + " uspesno pazario");
            else
                System.out.println(ime + " nije nista pazario");

            try {
                Thread.sleep(vreme*1000);
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
        }
    }

    public void ugasiNit(){
        this.radi=false;
    }
}

---------------------------------
Magacin
---------------------------------
 public Magacin(String nazivArtikla, int kolicina) {
        this.nazivArtikla = nazivArtikla;
        this.kolicina = kolicina;  //u magacinu
    }

    public synchronized boolean kupi(int kol){
        while (kolicina<kol){
            System.out.println("Trenutno nema na stanju, sacekajte...");
            try {
                wait();
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
        }
        kolicina-=kol;
        System.out.println("Trenutna kolicina: "+ kolicina);
        return true;
    }

    public synchronized void updareKolicina(){
        System.out.println("Azuriramo stanje...");
        kolicina+=5;
        notifyAll();
    }

    public void run(){
        for (int i=0;i<5;i++){
            updareKolicina();
            try {
                Thread.sleep(4000);
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
        }
    }
}
-----------------------------------------------
Program
-----------------------------------------------
package glavni;

import paket1.Kupac;
import paket1.Magacin;

/**
 * Created by urosrt4515 on 11/13/2018.
 */
public class Program {
    public static void main(String[] args) {
        Magacin m=new Magacin("Jabuka", 10);
        Kupac k1=new Kupac("Pera", m, 3);
        Kupac k2=new Kupac("Mile", m, 5);

        m.start();
        k1.start();
        k2.start();

        try {
            Thread.sleep(25000);
        } catch (InterruptedException e) {
            e.printStackTrace();
        }

        k1.ugasiNit();
        k2.ugasiNit();
    }
}

------------------------------
samostalni
------------------------------
 package samostalni_klase;

/**
 * Created by urosrt4515 on 11/13/2018.
 */
public class Hotel extends Thread {
    private Musterija[] niz= new Musterija[5];
    private boolean radi;

    public synchronized void smestanjeMusterija(Musterija m) {
        for (int i = 0; i < niz.length; i++) {
            if (niz[i] == null) {
                niz[i] = m;
                System.out.println(m.toString() + "smesten je u niz na indeksu " + i + "." +
                        " Kapacitet: " + i + "/" + niz.length );
            }
            else System.out.println("Kapacite hotela je pun");
        }
    }

    public synchronized void odjavljivanjeMusterija(Musterija m) {
        while (radi) {
            for (int i = 0; i < niz.length; i++) {
                if (niz[i] == m && m.getVremeBoravka() == 0){
                    niz[i] = null;
                    System.out.println(m.toString() + " je napustio hotel. Stanje je: " +
                            i + "/" + niz.length);
                }
                else {
                    m.smanjiVremeBoravka();
                    System.out.println("Prosao je dan za musteriju - " + m.toString());
                }
            }
            try {
                Thread.sleep(1000);
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
        }
    }



    public void ugasiNit(){
        this.radi=false;
    }
}

package samostalni_klase;

/**
 * Created by urosrt4515 on 11/13/2018.
 */
public class Musterija {
    private int vremeBoravka;
    private static int jedisntveniID=0;

    public Musterija(int vremeBoravka) {
        this.vremeBoravka = vremeBoravka;
        jedisntveniID++;

    }

    public int getVremeBoravka() {
        return vremeBoravka;
    }

    public void smanjiVremeBoravka(){
        this.vremeBoravka-=1;
    }

    @Override
    public String toString() {
        return "[Musterija " + jedisntveniID +"b: "+vremeBoravka+"]";
    }
}