Web Debugger

Fiddler

XML

XStream
XStream is a simple library to serialize objects to XML and back again.

JDBC

Get disconnected with CachedRowSet

Java cuncurrency

Concurrency

Design Pattern

Core J2EE Patterns

Computer Science

Recursion 
Recursion is the process of repeating items in a self-similar way


For example 7! equals 7*6*5*4*3*2*1 


public int factorial(int n)

{
  if (n <= 1) 
    return 1;
  else
    return n * factorial(n-1);
}

Tail Recursion

Tail call Optimization

Object Oriented Designs

SOLID

S = Single Responsibility Principle
O = Opened Closed Principle 
L = Liscov Substitution Principle
I = Interface Segregation Principle
D = Dependency Inversion Principle

How I explained OOD to my wife