In the following code, sort (long) is function, returns the int type
* Adjust in SQLPLUS:
SET ServerOutput on
Call dbms_java.set_output (200000);
Variable N Number
Variable f Number
EXECUTE: N: = 302;
Call sort (: n) INTO: F;
Print f
DBMS_JAVA.SET_OUTPUT () method will set the Java output information to the SQLPLUS window
