Structure: Initially (in C) a structure was used to bundle different type of data types together to perform a particular functionality. But C++ extended the structure to contain functions also. The major difference is that all declarations inside a structure are by default public.

Class: Class is a successor of Structure. By default all the members inside the class are private.

One more difference apart from public and private access specifier, that struct don’t have protected as an access specifier while class do.

2. What is the difference between an object and a class?

Classes and objects are separate but related concepts. Every object belongs to a class and every class contains one or more related objects.

A Class is static. All of the attributes of a class are fixed before, during, and after the execution of a program. The attributes of a class don’t change.

The class to which an object belongs is also (usually) static. If a particular object belongs to a certain class at the time that it is created then it almost certainly will still belong to that class right up until the time that it is destroyed.

An Object on the other hand has a limited lifespan. Objects are created and eventually destroyed.Also during that lifetime, the attributes of the object may undergo significant change.

3. What is encapsulation?

Encapsulation means wrapping up of Data and Code…this is what i got from data structures book.

4. What is an enumerator?

Enumeration is a value data type, which means that enumeration contains its own values and cannot inherit or pass inheritance. Enumerator allows you to assign symbolic names or integral constants.

5.  What is the difference between c & c++?

There are many differences between c and c++ but some of the important are

1.A small but potentially important difference between c and c++ is that in c a character constant is automatically elevated to and integer whereas in c++ it is not.

2.In c we can declare the global variable several times eventhough it is a bad programming concept but in c++ it is an error.

3.Another subtle difference between c and c++ is that in c++ all functions must be prototyped.Remember in c prototypes are recommended but technically optional.

For more knowledge on computer languages :  Click here

Few Words by Facebook CEO : - Mark Zuckerberg.

A chronicle of the founding of Facebook, the social-networking Web site.

Watch out the Movie : The Social Network

This Movie is an awesome production ,which boost up anybody to build a thing which can change the world.

]]> http://punuptech.com/2011/03/the-facebook-story/feed/ 0 http://punuptech.com/2011/03/kent-tap-gaurd-water-purifier/ http://punuptech.com/2011/03/kent-tap-gaurd-water-purifier/#comments Sat, 05 Mar 2011 08:29:18 +0000 Puneet http://punuptech.com/?p=1643

Now Brush Your Teeth & Wash Fruits & Vegetables With Bacteria – Free Safe Water

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• High grade granular activated carbon, a powerful de – chlorination agent, removes residual chlorine and the unpleasant odour from your tap water
• Advanced multi – layered hollow fiber UF membrane filter removes Rust, Bacteria, Cyst, Colifom Bacilli, Micro – organisms & Microscopic impurities from water
• See through window, to check contamination build up and find out when it’s time to replace the cartridge
• Long life membrane lasting upto 1500 litres
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• Easy availability of genuine filter cartridge and spare parts
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• Easy to use 3 – mode water selection lever to provide a choice of Purified Water, Unfiltered Straight or Unfiltered Spray to suit your needs.

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• Excellent choice for kitchen sinks – To wash fruits, vegetables, meat and sea food with bacteria and cyst – free water

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Visit   @   MusicIndiaOnline.com ]]> http://punuptech.com/2011/03/play-online-bollywooddevotionallatest-movie-songs/feed/ 0 http://punuptech.com/2011/03/cricket-kevin-obrien-hits-fastest-world-cup-century/ http://punuptech.com/2011/03/cricket-kevin-obrien-hits-fastest-world-cup-century/#comments Wed, 02 Mar 2011 17:12:49 +0000 Puneet http://punuptech.com/?p=1629

World Cup 2011 :- Kevin O’Brien (Ireland) hits fastest World Cup century !!

Ireland’s Kevin O’Brien smashed the fastest Cricket World Cup century in 50 balls against England in Group B on Wednesday. The previous best was Australian Matthew Hayden who took 66 balls to achieve three figures in 2007 against South Africa. O’Brien hit six sixes and 13 fours in his amazing innings as Ireland responded to England’s 327-8.

World Cup 2011

Battlefield Bad Company™ 2 brings the spectacular Battlefield gameplay to the forefront of next-gen consoles and PC, featuring best-in-class vehicular combat set across a wide range of huge sandbox maps each with a different tactical focus. New vehicles like the All Terrain Vehicle (ATV) and the UH-60 transport helicopter allow for all-new multiplayer tactics in the warzone. Extensive fine-tuning ensures that this will be the most realistic vehicle combat experience to date. Tactical destruction is taken to new heights with the updated DICE Frostbite engine. Players can now take down entire buildings or create their own vantage points by blasting holes through cover, thereby delivering a unique dynamic experience in every match.

The game is available for the PC,Xbox users.Battle field bad company 2 has been lauched   : Reviews :-

Battlefield: Bad Company 2 Vietnam – 360/PC/PS3 – PC

Enjoy & have fun ]]> http://punuptech.com/2011/02/battlefield-bad-company-2-promo/feed/ 0