Doing more with the Django admin

http://www.ibm.com/developerworks/opensource/library/os-django-admin/

Executor and Callable

http://www.particle.kth.se/~lindsey/JavaCourse/Book/Part1/Java/Chapter10/concurrencyTools.html

concurrentHashMap

http://stackoverflow.com/questions/2836267/concurrenthashmap-in-java 

http://www.codercorp.com/blog/java/why-concurrenthashmap-is-better-than-hashtable-and-just-as-good-hashmap.html 

Best Practices for Speeding Up Your Web Site

http://developer.yahoo.com/performance/rules.html

http://code.google.com/speed/page-speed/docs/rules_intro.html

Lock and condition java 5 concurrent api

http://developerlife.com/tutorials/?p=24

old way:

use synchronized keyword

Object monitorObject;

synchronized(monitorObject){

//critical section

}

new way: use Lock.lock() and Lock.unlock()

Lock lockObject;

try{

lockObject.lock();

}

finally{

lockObject.unlock();

}

----

old way: use wait() and notify() in the critical section

//insdie your critical section

boolean somecondition;

while(somecondition){

wait();

}

boolean someOtherCondition;

if(someOtherCondition){

notify();

}

new way: use await() and signal() on condition variables

Condition conditionVariable = lockObject.newCondition();

boolean somecondition;

while(somecondition){

conitionVariable.await();

}

boolean someothercondition;

if(someOtherCondition){

conditionVariable.signal();

}

Google question

Tell me what you know about security

What is cursor

Tell me about event system

Dealer inventory, what data structure, if large data,how you display partial while getting the whole

Junit ,what things you need pay attention

Python interview questions

http://techpreparation.com/python-interview-questions-answers1.htm