SQL & PL/SQL :: Retrieving Multiple Values In Stored Procedure Using Variables And Cursors

The goal is to create a stored procedure that will retrieve multiple values from a table.

GUI is in Java and they will trigger our procedure to show list of all employees and their roles , doj etc.

So I wrote the following procedure.
---------------------------------
create or replace
PROCEDURE emp_test(
c_cursor OUT SYS_REFCURSOR)
AS
BEGIN
OPEN c_cursor
FOR
SELECT emp_name, emp_doj, emp_role FROM emp_table ;
END;
---------------------------------

I'm using sql developer, stored procedure is compiled and I can manually run it by right clicking on the procedure and click 'Run'.

When I intend to run it by executing the script "Execute Procedure name ", I get errors.

In SQL Developer, I open new SQL file and key in

EXECUTE emp_test;

Highlight it and run the script, here is the list of errors that I get.

-------------------------------------------
Error starting at line 18 in command:
execute frm_lst
Error report:
ORA-06550: line 1, column 7:
PLS-00306: wrong number or types of arguments in call to 'emp_test'
ORA-06550: line 1, column 7:
PL/SQL: Statement ignored
06550. 00000 - "line %s, column %s:
%s"
*Cause: Usually a PL/SQL compilation error.
*Action:
--------------------------------------------

Issue 2:

Instead of using cursor, is there a way to use multiple parameters and insert the data retrieved from select column_name from table into these parameters and build it in a stored procedure. I tried something like below which did not work.
____________________________________________________

CREATE OR REPLACE PROCEDURE emp_test1
(e_name OUT emp_name%TYPE,
e_dob OUT Edob%TYPE)
IS
BEGIN
SELECT emp_nam, Edob
INTO e_name, e_dob
FROM emp_table
END emp_test1;
End;
______________________________________________________

Just so you know, there is no input parameter or input feed, when called the procedure should return all the values.