PL/SQL PRogram Of Cursor

declare
  e_id    employee.employee_id%type;
  e_first employee.first_name%type;
  e_last  employee.last_name%type;
  cursor e_cursor is
    select employee_id, first_name, last_name from employee;

begin
  open e_cursor;
  loop
    fetch e_cursor
      into e_id, e_first, e_last;
       exit when e_cursor%notfound;
    dbms_output.put_line('employee id :'
                         || e_id || 'employee first name is : ' ||
                         e_first || 'employee last name is : ' ||e_last);
  end loop;
  close e_cursor;
end;