g.setColor(Color.BLACK);
g.drawRect(rect.x, rect.y, rect.width, rect.height);
str = String.format("%s\n%s\n/", c.GetCourse().GetName(), c.GetLecturer().GetName());
for(Iterator<StudentsGroup> it2 = c.GetGroups().iterator();
it2.hasNext();)
{
str += it2.next().GetName();
str += "/";
}