public void Init()
{
Pupil[] pupils = new Pupil[4];
pupils[0] = new GoodPupil();
pupils[1] = new GoodPupil();
pupils[2] = new BadPupil();
pupils[3] = new ExcellentPupil();
_target = new ClassRoom(pupils[0], pupils[1], pupils[2], pupils[3]);
}
public void Init()
{
_target = new ExcellentPupil();
}