how to use array in oracle

if you wanna its not null array you must be write "not null"

DECLARE
TYPE myArrayType IS TABLE OF VARCHAR(50) NOT NULL INDEX BY BINARY_INTEGER;

v_array myArrayType;

BEGIN
v_array(0):='OLGUN';

v_array(1):='ARİF';

v_array(2):='BURAK';

FOR I IN 0 .. 2 LOOP
dbms_output.put_line(v_array(i));
END LOOP;
END;