OBP2_V5_licence

import java.io.*;
import java.util.ArrayList;
import java.util.Scanner;

public class app {
    public static Settings glavni;
    public static void main(String[] args) {

        File f = new File("licence.bin");
        ArrayList<String> lista_licenci = new ArrayList<>();
        lista_licenci.add("AAAA-AAAA-AAAA-AAAA");
        lista_licenci.add("BBBB-BBBB-BBBB-BBBB");
        lista_licenci.add("CCCC-CCCC-CCCC-CCCC");


        if(!f.exists()){
            try {
                Settings def = new Settings();
                f.createNewFile();
                def.upisi("licence.bin");
                System.out.println("Datoteka kreirana!");
            } catch (IOException e) {
                e.printStackTrace();
            }
        }else {
            System.out.println("Datoteka vec postoji");
            Settings cit;
            cit = Settings.procitaj("licence.bin");
            System.out.println(cit);
        }

        System.out.println("DA LI IMATE LICENCU ZA PROGRAM?? (DA/NE)");
        Scanner input = new Scanner(System.in);
        input.useDelimiter("\\n");
        String unos = input.next();
        if(unos.equals("DA")){
            String unos_licence = null;
            while (!lista_licenci.contains(unos_licence)){
                System.out.println("UNESITE SVOJU LICENCU (FORMAT: XXXX-XXXX-XXXX-XXXX");
                unos_licence = input.next();
            }
            if(lista_licenci.contains(unos_licence)){
                System.out.println("UNESITE ZELJENO KORISNICKO IME: ");
                unos = input.next();
                Settings novi = new Settings(unos,unos_licence,15);
                novi.upisi("licence.bin");
                glavni = novi;
            }
        }else {
            System.exit(0);
        }
        Nit nit = new Nit();
        nit.start();
    }
}

////////

/**
 * Created by guest-Mt2hFp on 21.11.17..
 */
public class Nit extends Thread {
    public void run(){
        while (app.glavni.getVreme()>0){
            System.out.println(app.glavni.getKorisnickoime());
            try {
                this.sleep(1000);
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
            app.glavni.smanjiVreme();
            app.glavni.upisi("licence.bin");
        }
    }
}

///////////

import java.io.*;

/**
 * Created by markort2815 on 21.11.17..
 */
public class Settings implements Serializable {
    private String korisnickoime;
    private String licenca;
    private int vreme;

    public Settings(String korisnickoime, String licenca, int vreme) {
        this.korisnickoime = korisnickoime;
        this.licenca = licenca;
        this.vreme = vreme;
    }

    public Settings() {
        this.korisnickoime = "evaluate";
        this.licenca = "0000-0000-0000-0000";
        this.vreme = 1;
    }

    public static Settings procitaj(String path){
        try {
            FileInputStream fileInputStream = new FileInputStream(path);
            ObjectInputStream objectInputStream = new ObjectInputStream(fileInputStream);
            Settings load = (Settings)objectInputStream.readObject();
            fileInputStream.close();
            objectInputStream.close();
            return load;
        }catch (IOException e){
            e.printStackTrace();
            return null;
        }catch (ClassNotFoundException e){
            e.printStackTrace();
            return null;
        }
    }

    public void upisi(String path){
        try {
            FileOutputStream fileOutputStream = new FileOutputStream(path);
            ObjectOutputStream objectOutputStream = new ObjectOutputStream(fileOutputStream);
            objectOutputStream.writeObject(this);
            objectOutputStream.close();
            fileOutputStream.close();
        }catch (IOException e){
            e.printStackTrace();
        }
    }

    @Override
    public String toString() {
        return "Settings{" +
                "korisnickoime='" + korisnickoime + '\'' +
                ", licenca='" + licenca + '\'' +
                ", vreme=" + vreme +
                '}';
    }

    public String getLicenca() {
        return licenca;
    }

    public String getKorisnickoime() {
        return korisnickoime;
    }

    public int getVreme() {
        return vreme;
    }

    public void smanjiVreme(){
        vreme=vreme-1;
    }
}