Fibonacci using recursion – Really Easy or Hard??

          Efficient recursion for Fibonnaci

E-Mail notifications in Oracle PL/SQL

          Sending email (optionally with CLOB/BLOB attachments) using Oracle PL/SQL procedures

Java Enum Validator

          Java enum validation using Java Bean Validation framework

PriorityDeque and PriorityBlockingDeque in Java

          Priority base deque implementation using min-max heap

PriorityExecutorService in Java

          Priority based ExecutorService whereby priority of task can be submitted along with task