Interview Questions On Java

Question: What is the difference between an Interface and an Abstract class?
Question: What is the purpose of garbage collection in Java, and when is it used?  
Question:  Describe synchronization in respect to multithreading.
Question:  Explain different way of using thread?  
Question:  What are pass by reference and passby value?
Question:  What is HashMap and Map?
Question:  Difference between HashMap and HashTable?
Question: Difference between Vector and ArrayList?
Question:  Difference between Swing and Awt?
Question:  What is the difference between a constructor and a method?
Question:  What is an Iterator?
Question:  State the significance of public, private, protected, default modifiers both singly and in combination and state the effect of package relationships on declared items qualified by these modifiers.
Question: What is an abstract class?
Question: What is static in java?
Question: What is final? 


courtesy:allapplabs.com 



To check Some more Good Questions You may face in Interview about java ... Check out the below links

http://www.roseindia.net/interviewquestions/corejava.shtml

http://www.interview-questions-java.com/

http://www.freejavaguide.com/java-interview-questions.html

http://www.coolinterview.com/type.asp?iType=33

http://www.javacertificate.net/interview_qns.htm

Capture Ur Desktop Activity Into A Video

CamStudio is able to record all screen and audio activity on your computer and create industry-standard AVI video files and using its built-in SWF Producer can turn those AVIs into lean, mean, bandwidth-friendly Streaming Flash videos (SWFs)

Here are just a few ways you can use this software:
  • You can use it to create demonstration videos for any software program
  • Or how about creating a set of videos answering your most frequently asked questions?
  • You can create video tutorials for school or college class
  • You can use it to record a recurring problem with your computer so you can show technical support people
  • You can use it to create video-based information products you can sell
  • You can even use it to record new tricks and techniques you discover on your favorite software program, before you forget them

Homepage | Download

CTS :Combined Campus Freshers Recruitment Drive : BE / B.Tech / MCA / ME / M.Tech / M.Sc-2011 & 2010

Cognizant Technology Solutions India Private Limited (www.cognizant.com)
Cognizant Technology Solutions [CTS] is again going to conduct Offcampus for 2011,2010 Batch candidates. CTS already conducted offcampus in the month of April & October 2010.



The eligibility criteria is :
1) Open only to the students with following degrees

* Category 1: BE / B Tech / ME / M Tech / MCA / M Sc (Computer Science / IT / Software Engg)
* Category 2: B Sc / BCA / M Sc (except Computer Science / IT / Software Engg)

2) Year of graduation: 2010 or 2011 batch only (ie., 2011 Pass outs & 2010 Passed outs)

3) Consistent First Class (over 60%) in X, XII, UG and PG (if applicable)

STEP 1:
Go to

https://careers.cognizant.com/OffCampus/GeneralInstruction.aspx

Step 2:
Click on Continue which is at the bottom of the page.

STEP-3
Click on Apply Now

STEP 4:
Fill the application form & after that u will get a unique reference ID which u need to save for future reference.

CTS New PatterN:

Click on image for large view(zoomin)

Install XP in 10 Minutes

As We all know that During Formatting a Computer After the File Copying is Completed then windows Require 39 Minutes Time. We can bypass this time by a simple trick.

It will just take around 9 minutes and 2 minutes for Tolerance(depends System to system).

Install Windows in 10 mins:-
=======================

1) Wait till the copy part is over, when its over system reboots and the below image will appear.


2) Now As This Image APPEARS You Have to Press "Shift + F10 ". This Will Open The command Prompt. Now type "taskmgr" in it to open the Task manager.

3) After The task Manager Opens go to Processes tab and find "Setup.exe" process and Right CLICK on it and set the Priority to Highest.


4) Now just wait and watch your xp install in 10 mins !

Yahoo Messenger Adds Support To Import Contacts From FaceBook

If you are a Yahoo messenger user, you must have already been introduced to the import contacts option quite sometime back, the import function supports importing contacts from various websites like Gmail, Hotmail, MySpace, Orkut and more.



In addition to the already existing domains, Yahoo had added an option to import contacts from FaceBook, this option is available when you choose Import Contacts menu.

All the contacts on facebook will be available and you can chat with your  facebook contacts directly from Yahoo! Messenger.



Learn Something Everyday

Look at this beautiful website which reveals something unusual and interesting everyday.
Put this website as homepage for ur browser and learn something everyday.
Link for that site is  http://www.learnsomethingeveryday.co.uk/

ACA Overview Slide

ACA Overview




Dont miss ! Have a Glance..

40 People Who Changed The Internet

The world has become tightly connected since the internet. The web itself has replaced the practice of reading newspaper. Most of us now communicate through e-mails instead of paper and pen. We now watch networks or movies online, it has even become a wide business venture, so much so we can now make purchase and pay our bills through the internet. The web has also transformed friendships through various social media. It also provides us the possibility to reconnect with people from our childhood and it can be a life changing event.
preview 40 People Who Changed the Internet
Having a great idea is one thing. Turning that idea into a booming company through innovation and execution is what that matters most. Here, these are the people who have the biggest impact on the direction of the web: past, present, and future. They changed the internet and revolutionized the way we lead our lives today. Just imagine the world without internet. You can’t because it has become our daily life.


Courtesy: hongkiat.com

SPM Slide for Overview And Previous Papers

Software Project Management Overview

[ Download ]



sup-march*2010 , nov-08 , nov-09 , sup-may-09 SPM previous papers
In March 2010 , SPM papers are from page no-21.

[ Download ]




TCP and UDP Differences

Imp Question Both for Mobile Computing and Network Programming.


Q. Can you explain the difference between UDP and TCP internet protocol (IP) and its usage with an example?
A. Transmission Control Protocol (TCP) and User Datagram Protocol (UDP)is a transportation protocol that is one of the core protocols of the Internet protocol suite. Both TCP and UDP work at transport layer TCP/IP model and both have very different usage.

Difference between TCP and UDP

TCP

UDP

Reliability: TCP is connection-oriented protocol. When a file or message send it will get delivered unless connections fails. If connection lost, the server will request the lost part. There is no corruption while transferring a message.

Reliability: UDP is connectionless protocol. When you a send a data or message, you don't know if it'll get there, it could get lost on the way. There may be corruption while transferring a message.

Ordered: If you send two messages along a connection, one after the other, you know the first message will get there first. You don't have to worry about data arriving in the wrong order.

Ordered: If you send two messages out, you don't know what order they'll arrive in i.e. no ordered

Heavyweight: - when the low level parts of the TCP "stream" arrive in the wrong order, resend requests have to be sent, and all the out of sequence parts have to be put back together, so requires a bit of work to piece together.

Lightweight: No ordering of messages, no tracking connections, etc. It's just fire and forget! This means it's a lot quicker, and the network card / OS have to do very little work to translate the data back from the packets.

Streaming: Data is read as a "stream," with nothing distinguishing where one packet ends and another begins. There may be multiple packets per read call.

Datagrams: Packets are sent individually and are guaranteed to be whole if they arrive. One packet per one read call.

Examples: World Wide Web (Apache TCP port 80), e-mail (SMTP TCP port 25 Postfix MTA), File Transfer Protocol (FTP port 21) and Secure Shell (OpenSSH port 22) etc.

Examples: Domain Name System (DNS UDP port 53), streaming media applications such as IPTV or movies, Voice over IP (VoIP), Trivial File Transfer Protocol (TFTP) and online multiplayer games etc

JNTU 4-1 CSE Previous Papers

Advanced Computer Architecture - Download


Data Mining And Warehousing - Download


Mobile Computing - Download


Software project Management - Download


Web Technologies - Download




Courtesy: Navdeep

JDBC Driver Types

You will not get marks for the content given in text book. Read this material for JDBC Driver Types (8th Unit from Web Technology).

List Of Paper Sizes

From this picture U can get a clear cut view about the paper sizes