public override void Notify(Colleage stu)
{
stu.Talk();
foreach (var item in this.List)
{
Colleage it = (Colleage)item;
if (item != stu)
{
it.Talk();
}
}
}
public override void Chart(Colleage stu1, Colleage stu2)
{
stu1.Talk();
stu2.Talk();
}
public abstract void Notify(Colleage stu);
public abstract void Chart(Colleage stu1, Colleage stu2);
public void AddColleage(Colleage student)
{
List.Add(student);
}
