private static void Main()
{
Student student = new Student("Peter", 22);
student.onChangeProperty+=student_onChangeProperty;
student.Name = "Pesho";
student.Age = 10;
}
static void Main()
{
Student student = new Student("Peter", 22);
student.PropertyChanged +=student_PropertyChanged;
student.Name = "Misho";
student.Age = 35;
student.Age = 30;
student.Name = "Gosho";
}