public class SetAircraftsGeneric<T>
{
    private T[] _places;

    public int getCount() {
        return _places.length;
    }

    public SetAircraftsGeneric(int count)
    {
        _places = (T[])(new Object[count]);
    }
    public int Insert(T car)
    {
        for(int i = 0; i < _places.length; i++)
        {
            if (_places[i] == null)
            {
                _places[i] = car;
                return i;
            }
        }
        return -1;
    }
    public int Insert(T car, int position)
    {
        int index = position;

        while (_places[index] != null && index < _places.length) index++;

        if (index == _places.length) return -1;
        for (int i = index; i > position; --i) _places[i] = _places[i - 1];

        _places[position] = car;
        return position;
    }

    public T Remove(int position)
    {
        if(position >= _places.length) return null;
        T res = _places[position];
        _places[position] = null;
        return res;
    }

    public T Get(int position)
    {
        return _places[position];
    }
}