Garbage collection in java

http://techno-cratic.blogspot.in/2009/04/ergonomics-garbage-collection-in-java.html

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