Why no output when PLSQL Anonymous block completes

Question

This question already has an answer here:

• Printing the value of a variable in SQL Developer 7 answers

I'm just getting into PL/SQL, and I tried to run the following code, and I am getting anonymous block completed, but I think I should be getting Testing output. Does any know what I am doing wrong?

DECLARE
   message varchar2(20) := 'Testing output';
BEGIN
   dbms_output.put_line(message);
END;
/

Answer 1

Yes. There is way to see output in SQL Developer.

Click ->View->Dbms Output and then click + symbol on Dbms output window. now you can run the procedure and can see output.