How to enter cursor as an input in procedure oracle

I want to create a procedure that uses cursor as an input in Oracle. I tried something like this:

cursor cur is select * from table t1;

and then also:

create or replace procedure (I want to input cursor cur here)
is
begin
end;/

How can I do that?

Here's an example which shows one way to do it.

Procedure that accepts cursor as a parameter, loops through it and displays it contents:

SQL> create or replace procedure p_test (par_cursor in sys_refcursor)
  2  is
  3    l_ename emp.ename%type;
  4    l_sal   emp.sal%type;
  5  begin
  6    loop
  7      fetch par_cursor into l_ename, l_sal;
  8      exit when par_cursor%notfound;
  9      dbms_output.put_line(l_ename ||' - '|| l_sal);
 10    end loop;
 11  end;
 12  /

Procedure created.

How to use it?

SQL> set serveroutput on
SQL> declare
  2    l_rc sys_refcursor;
  3  begin
  4    open l_rc for
  5      select ename, sal
  6        from emp
  7        where deptno = 10;
  8    p_test (l_rc);
  9  end;
 10  /
CLARK - 2450
KING - 5000
MILLER - 1300

PL/SQL procedure successfully completed.

SQL>