plsql - use to_date oracle function using week number and day number oracle -

i'm trying date day of week number , week of month number.

for example, have table called club stores on day , week exams available, has dayofexam , weekofexam attributes.

dayofexam=2 (monday).    weekofexam=1 

that means exams available on every monday of first week of each month. , need 04-jan-2016 ... 08-feb-2016 .. 07-mar-16 , on....

i tried using like

to_date('21012016','dwmmyyyy'); 

is possible date? thanks.

in sql, can use next_day , add multiple of 7 days. if want return date each month in year, can this. if want more months, can adjust starting date , number of months go forward.

with x (   select 2 dayofexam, 1 weekofexam dual ), first_of_month (   select add_months( date '2016-01-01', level-1 ) mnth,          dayofexam,          weekofexam     x  connect level <= 12 ) select next_day( mnth, dayofexam ) + 7 * (weekofexam - 1) the_date   first_of_month;