Pure Virtual Function & Abstract Base Class

If we want to provide only interface for the derived class then we use the concept of abstract base class. If we create abstract base class then we can not create object of that base class. Writing pure virtual function means writing (=0) at the end of a prototype of a function without any defination. When we write at least a single pure virtual function inside the class then that class is considered as a abstract base class. A class having pure virtual function only says what to do does not say how…Read more

Reference Variables in C++

This concept is used in C++. When we create a variable of any data type, we use single identifier to identify that variable. Example:    int i; In this case, i is an identifier from which we can access that variable. If we want to assign some another name to that same identifier then we can use the reference variable concept from C++. A reference variable are such a variable which are refering to already created datatypes. A reference variables are the names given to the variable. Entry of that another name is…Read more

Pointers : In Simple Terms

Before starting a pointer first clear basic concepts of a variable. A variable is nothing but a name given to a storage area that our program can manipulate. Each variable in the C has a specific type which determines a size and the layout of the variable's memory; the range of values that can be stored within that memory; and the set of operations that can be applied to the variable. When we declare a variable like int no = 21; Then it does get 4 bytes of memory and inside that memory…Read more

The Karbonn S5 Titanium Review

The Karbonn S5 Titanium is the next version of S1 Titanium. It has 5-inch HD display and an 8-megapixel rear camera. The price at the time of launching was around 12000 but now it has come down to 9999 in the online market. Let’s find out why you should buy this karbonn product. Design The karbonn titanium S5 is looks a little different from the titanium S1. It is much more thinly compared to its previous version. The phone is launched in 2 colours that are white and deep blue. It has 5-inch…Read more

Static Members and Static Concept

The static concept in C and C++ is different. When we create the static variable in the C its scope is limited means inside its .obj file only. But in the C++ when we create the static member its single copy can be shared between all the objects of the class. Memory allocated for the static members is on the .bss or non bss section. We can initialize the static members inside the constructor like the non static members, or we can initialize it after the class definition like int demo::i=10; Value for…Read more

Virtual Functions in C++

Important points about Polymorphism and Virtual Function   Polymorphism is the third important feature in C++ after data abstraction and inheritance. Polymorphism means single name and multiple meaning. There are two types of polymorphism like compile time polymorphism and run time polymorphism. We can achieve compile time polymorphism using the function and operator overloading. We can achieve run time polymorphism using the virtual functions. In case of function overloading we can write the multiple function having same name inside a single class. And when we call that function the call is bind with…Read more

Blackberry z10 review

Introduction For a long time, Blackberry was noticeably regarded as a gadget creator that concentrated on the venture section. With rivalry from any resemblance of Apple, Samsung and other handset creators that made Android mechanisms, Blackberry made a move for the developing markets, leveraging its informing stage and making economy apparatuses under its Curve arrangement focused at youths. The organization's Curve arrangement finished exceedingly well and gave Blackberry a portion in the Indian business sector. In 2013, a period when Blackberry is reinventing itself after a monstrous redesign headed by Blackberry 10, the…Read more

Creativity in Designing

Numerous individuals make their sites and weblog with real substance. In each 5 seconds there are more than two sites are started on the Internet. In any case suppose it is possible that you have made a site (weblog) and you are not getting sufficient activity to your site. A site without any web movement is only a waste of time.   Numerous blogger spot the real substance on their online journals, however they still don't get listed in internet searcher and absence of web traffic. I am set to impart how to…Read more

Pointer Arithmetic

Do you want to be a Master in C? then you should have to know about pointer arithmetic. Referencing a Pointer: • Referencing the pointer means storing the address of particular object into the pointer variable. For ex: int no = 10; int *ptr = & no; • In this example we store the address of no variable in a pointer variable ptr. & operator is used for retrieving the address and it is called as "address of operator ". • This “&” operator is not used for an array and a function…Read more

Do You Know What is Firewall?

This article states the use of firewall for your security of your operating system from unwanted browsing sites .The firewall plays a vital role in maintaining security of your assets on computer. Have you ever noticed when u type domain www.facebook.com in your college, company or institute it is not available to intended user WHY the reason is administrator has hosted firewall for security.   A firewall protects networked computers from intentional hostile intrusion that could compromise confidentially or result in data corruption or denial service .It may be a hardware device or…Read more