Oracle script using cursors

Hi all. I'm doing a script that selects the NAME of a table and order the result by CLASS, by using cursors. The cursor 1, is to select CLASS NAME, where CLASS = '1'; While the 2nd cursor's SELECT CLASS NAME where CLASS = '2'; and after that, you use the LOOP, the script does the job, but I have to write the same code for 2 sliders as follows:
If I have a table named LIMBAFK with the NAME and the CLASS in the form of columns and data as follows:

NAME CLASS
JULIAN 1
Michale 1
2 George

DECLARE
CURSOR C1 IS SELECT NAME FROM LIMBAFK WHERE CLASS = '1';
CURSOR C2 IS SELECT NAME FROM LIMBAFK WHERE CLASS = '2';
MYD C1% ROWTYPE;
MY2D C2% ROWTYPE;
BEGIN
OPEN C1;
DBMS_OUTPUT. PUT_LINE('1');
LOOP
FETCH C1 INTO MYD;
WHEN EXIT C1% NOTFOUND;
DBMS_OUTPUT. PUT_LINE (MYD.NAME);

END LOOP;
CLOSE C1;
OPEN C2;
DBMS_OUTPUT. PUT_LINE('2');
LOOP
EXTRACT THE C2 IN MY2D;
WHEN THE EXIT C2% NOTFOUND;
DBMS_OUTPUT. PUT_LINE (MY2D.NAME);

END LOOP;
CLOSE C2;
END;

Then, using this script, the result would be:
1
Julian
Michale
2
George

It's good and it works, but I don't want to write the same code for the two sliders, so I had in mind that the first cursor selects CLASS DISTINCTE of the table, and the 2nd cursor NAME, CLASS, of the same table, and then a comparison between the sliders using, do the same thing. I wrote the code, but it doesn't work at all, so I hope someone can help me.
Here's what I've done so far, but it is not at all finished:

DECLARE

CURSOR C1 IS SELECT CLASS OF LIMBAFK;
CURSOR C2 IS SELECT NAME, CLASS OF LIMBAFK;

MYD C1% ROWTYPE;
MY2D C2% ROWTYPE;

BEGIN
OPEN C1;
LOOP
WHEN EXIT C1% NOTFOUND;
FETCH C1 INTO MYD;
DBMS_OUTPUT. PUT_LINE (MYD. CLASS);
OPEN C2;
LOOP
WHEN THE EXIT C2% NOTFOUND;
EXTRACT THE C2 IN MY2D;
IF C2. CLASS = C1. CLASS
DBMS_OUTPUT. PUT_LINE (MYD. CLASS);

END LOOP;
CLOSE C1;
END;

declare

cursor c1 is select CLASS,NAME,  lag(class, 1) over (order by class) prev_class from LIMBAFK;

    l_var C1%ROWTYPE;

begin 

   open c1;
   loop
   fetch c1 into l_var;
   exit when c1%notfound;

          if (l_var.prev_class != l_var.class or l_var.prev_class is null) then
             dbms_output.put_line(l_var.class);
          end if;

           dbms_output.put_line(l_var.name)  ;   

   end loop;
end;

http://download.Oracle.com/docs/CD/B19306_01/server.102/b14200/functions070.htm#SQLRF00652

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Oracle script using cursors

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