public class Ugyfel {

    private String Name;
    private double Balance;
    private static double CostPerMinutes;

    static void SetCostPerMinutes(double NewCPM){
        CostPerMinutes = NewCPM;
    }

    Ugyfel(String InputName){
        this.Name = InputName;
        this.Balance = 3000;
    }

    Ugyfel (String InputName, double InputBalance){
        this.Name = InputName;
        this.Balance = InputBalance;
    }

    public double IncreaseBalance(double AmountAdded){
        this.Balance += AmountAdded;
        return this.Balance;
    }

    public String toString(){
        return (this.Name + "; " + this.Balance);
    }

    public void Phoning(int Minutes){
        this.Balance -= (Minutes * CostPerMinutes);
    }


}

==========================================================================================



public class Main {

    /**
     * @param args
     */
    public static void main(String[] args) {
        // TODO Auto-generated method stub
        /*
        // 1.

        Ugyfel KisJanos = new Ugyfel("Kis János");
        Ugyfel GraionDilach = new Ugyfel ("Graion Dilach", 2341);

        Ugyfel.SetCostPerMinutes(20);
        System.out.println(KisJanos.toString());
        System.out.println(GraionDilach.toString());

        KisJanos.Phoning(8);
        System.out.println(KisJanos.toString());

        Ugyfel.SetCostPerMinutes(45);
        GraionDilach.Phoning(12);
        System.out.println(GraionDilach.toString());

        System.out.println(GraionDilach.IncreaseBalance(321.80));
        System.out.println(GraionDilach.toString());
        */

        // 2.
        /*
        Worker AnarielTaulmaril = new Worker("Anariel Taulmaril", 52000, 1985);
        Worker ArthurBrachfeld = new Worker("Arthur Brachfeld", 52000, 1973);
        Worker SiegfriedSchtauffen = new Worker("Siegfried Schtauffen", 52000, 1964, 50);

        System.out.println(AnarielTaulmaril.toString());
        System.out.println(ArthurBrachfeld.toString());
        System.out.println(SiegfriedSchtauffen.toString());

        System.out.println("Anariel Taulmarilnak " + AnarielTaulmaril.HolidaysRemain() + "napnyi szabadsága van.");
        System.out.println(ArthurBrachfeld.TriedToTakeOutHoliday(10));
        System.out.println(AnarielTaulmaril.TriedToTakeOutHoliday(40));

        System.out.println(AnarielTaulmaril.toString());
        System.out.println(ArthurBrachfeld.toString());

        System.out.println("Siegfried Schtauffennek még " + SiegfriedSchtauffen.YearsTilRetire() + " éve van a nyugdíjazásáig.");
        Worker.GovtConstitutesNewAOR(68);
        System.out.println("Siegfried Schtauffennek még " + SiegfriedSchtauffen.YearsTilRetire() + " éve van a nyugdíjazásáig.");

        SiegfriedSchtauffen.IncreasePayment(1.15);
        AnarielTaulmaril.IncreasePayment(1.1);
        ArthurBrachfeld.IncreasePayment(1.1);

        System.out.println(AnarielTaulmaril.toString());
        System.out.println(ArthurBrachfeld.toString());
        System.out.println(SiegfriedSchtauffen.toString());
        */
        //3.

        for(int i=0 ; i<100000; i++){
            SelfCounter TempSelfCounter = new SelfCounter();
            System.out.println(SelfCounter.AmountOfMeIs());
        }
        System.out.println(SelfCounter.AmountOfMeIs());

    }

}

===============================================================================================



public class Worker {

    private String Name;
    private int Payout;
    private int AnnualHolidays;
    private int HolidaysUsedUpSoFar;
    private int YearOfBorn;
    private static int AgeOfRetirement = 65;

    Worker (String _Name, int _Payout, int _YearOfBorn){
        this.Name = _Name;
        this.Payout = _Payout;
        this.YearOfBorn = _YearOfBorn;
        this.AnnualHolidays = 30;
        this.HolidaysUsedUpSoFar = 0;
    }

    Worker (String _Name, int _Payout, int _YearOfBorn, int _AnnualHolidays){
        this(_Name, _Payout, _YearOfBorn);
        this.AnnualHolidays = _AnnualHolidays;
    }


    private boolean TakeHoliday (int Days){
        if (Days + this.HolidaysUsedUpSoFar > this.AnnualHolidays){
            return false;
        } else {
            this.HolidaysUsedUpSoFar += Days;
            return true;
        }
    }

    public String toString(){
        return (this.Name + "; fizetése " + this.Payout + "; születési éve " + this.YearOfBorn
                + "; szabadságainak száma " + this.AnnualHolidays + "; ebből felhasznált " + this.HolidaysUsedUpSoFar);
    }

    int HolidaysRemain(){
        return this.AnnualHolidays - this.HolidaysUsedUpSoFar;
    }

    int YearsTilRetire(){
        return AgeOfRetirement-(2012-this.YearOfBorn);
    }

    String TriedToTakeOutHoliday(int Days){
        if (this.TakeHoliday(Days)){
            return this.Name + " kivett " + Days + " napnyi szabadságot.";
        } else {
            return this.Name + " ki próbált venni " + Days + " napnyi szabadságot, de nem volt neki annyi!";
        }
    }

    static void GovtConstitutesNewAOR(int NewAOR){
        AgeOfRetirement = NewAOR;
    }

    void IncreasePayment (double Percentage){
        this.Payout = (int) (this.Payout*Percentage);
    }
}


========================================================================================


public class SelfCounter {

    private static int AmountOfMe=0;

    SelfCounter(){
        AmountOfMe++;
    }

    protected void finalize(){
        AmountOfMe--;
        try {
            super.finalize();
        } catch (Throwable e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
    }

    static int AmountOfMeIs(){
        return AmountOfMe;
    }
}