public void showStudents(LinkedList<Student> students) {
		final int size = students.size();
		data = new Object[size][];

		int i;
		Iterator<Student> it = students.iterator();
		Student t;
		for (i = 0; it.hasNext(); ++i) {
			t = it.next();
			data[i] = new Object[] { t.no, t.name, t.age, t.sex, t.birthday,
					t.address, t.tel, t.email };
		}

		this.fireTableDataChanged();
	}