Oracle Loop

Hello expert,

Using Oracle SQL Developer ver 18.1
working on learning about PL/SQL Loops.
At
https://www.tutorialspoint.com/plsql/plsql_loops.htm
The code
DECLARE
   i number(1);
   j number(1);
BEGIN
   << outer_loop >> 
   FOR i IN 1..3 LOOP
      << inner_loop >> 
      FOR j IN 1..3 LOOP
         dbms_output.put_line('i is: '|| i || ' and j is: ' || j);
      END loop inner_loop;
   END loop outer_loop;
END;
/

is offered and says the result will be

i is: 1 and j is: 1
i is: 1 and j is: 2
i is: 1 and j is: 3
i is: 2 and j is: 1
i is: 2 and j is: 2
i is: 2 and j is: 3
i is: 3 and j is: 1
i is: 3 and j is: 2
i is: 3 and j is: 3  

PL/SQL procedure successfully completed.

But all that is output is

 PL/SQL procedure successfully completed.

Is there something that needs to be changed to get the
more complete result?

Thanks.

Allen in Dallas