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What is an object? C++
What is an object? C++ Object is a software bundle of variables and related methods. Objects have state and behavior. 2012-02-08, 2742👍, 0💬

Could you tell something about the Unix System Kernel?
Could you tell something about the Unix System Kernel? The kernel is the heart of the UNIX openrating system, it’s reponsible for controlling the computer’s resouces and scheduling user jobs so that each one gets its fair share of resources. 2012-04-04, 2738👍, 0💬

In C++, what is the difference between method overloading and method overriding?
In C++, what is the difference between method overloading and method overriding? Overloading a method (or function) in C++ is the ability for functions of the same name to be defined as long as these methods have different signatures (different set of parameters). Method overriding is the ability of... 2012-03-27, 2737👍, 0💬

What is polymorphism? C++
What is polymorphism? C++ Polymorphism is the idea that a base class can be inherited by several classes. A base class pointer can point to its child class and a base class array can store different child class objects. 2012-02-01, 2734👍, 0💬

What is the difference between char a[] = “string”; and char *p = “string”;?
What is the difference between char a[] = “string”; and char *p = “string”;? In the first case 6 bytes are allocated to the variable a which is fixed, where as in the second case if *p is assigned to some other value the allocate memory can change. 2012-03-07, 2731👍, 0💬

What are proxy objects? C++
What are proxy objects? C++ Objects that stand for other objects are called proxy objects or surrogates. template &lt;class t=""> class Array2D { public: class Array1D { public: T& operator[] (int index); const T& operator[] (int index)const; }; Array1D operator[] (int index); const Arra... 2012-01-12, 2731👍, 0💬

What is the difference between class and structure?
What is the difference between class and structure? 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... 2012-02-06, 2730👍, 0💬

What is a class? C++
What is a class? C++ Class is a user-defined data type in C++. It can be created to solve a particular kind of problem. After creation the user need not know the specifics of the working of a class. 2012-02-20, 2725👍, 0💬

What is an Iterator class? C++
What is an Iterator class? C++ A class that is used to traverse through the objects maintained by a container class. There are five categories of iterators: input iterators, output iterators, forward iterators, bidirectional iterators, random access. An iterator is an entity that gives access to the... 2012-01-05, 2723👍, 0💬

What is a dangling pointer? C++
What is a dangling pointer? C++ A dangling pointer arises when you use the address of an object after its lifetime is over. This may occur in situations like returning addresses of the automatic variables from a function or using the address of the memory block after it is freed. The following code ... 2012-01-06, 2718👍, 0💬

What is the difference between an object and a class?
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 o... 2012-02-17, 2717👍, 0💬

If this is a complete translation unit, what can be said about the variable "MaxEntries"?
const int MaxEntries = 10; extern int entries[MaxEntries]; If this is a complete translation unit, what can be said about the variable "MaxEntries"? 1) It can only be used within the translation unit shown in the sample. 2) It cannot be used as a case value in a switch statement. 3) It becomes acces... 2012-04-24, 2714👍, 0💬

How do you link a C++ program to C functions?
How do you link a C++ program to C functions? By using the extern "C" linkage specification around the C function declarations. 2012-03-12, 2714👍, 0💬

What is the value of "count" immediately before the return statement above is executed?
int count=0; class obj { public: obj(){ count++; } ~obj() { count--; } }; main() { obj A,B,C,D ; return 0 ; } What is the value of "count" immediately before the return statement above is executed? 1) 0 2) 1 3) 2 4) 3 5) 4 2012-04-25, 2711👍, 0💬

What are each of the standard files and what are they normally associated with?
They are the standard input file, the standard output file and the standard error file. The first is usually associated with the keyboard, the second and third are usually associated with the terminal screen. Detemine the code below, tell me exectly how many times is the operation sum++ performed ? ... 2012-04-05, 2708👍, 0💬

What is a node class? C++
What is a node class? C++ A node class is a class that, * relies on the base class for services and implementation, * provides a wider interface to the users than its base class, * relies primarily on virtual functions in its public interface * depends on all its direct and indirect base class * can... 2012-01-13, 2708👍, 0💬

What values are be stored in 'a' after the above sample code is run if it is run on a system where pointers are two bytes lo
char a; char ca[] = {'a','e','i','o','u','y'}; char* pca = ca; pca += 2; a = *pca; What values are be stored in 'a' after the above sample code is run if it is run on a system where pointers are two bytes long? 1) a = 'u' 2) a = 'e' 3) a = 'i' 4) The code is illegal. Only a pointer can be added to a... 2012-04-20, 2698👍, 0💬

What are the differences between a C++ struct and C++ class?
What are the differences between a C++ struct and C++ class? The default member and base-class access specifiers are different. 2012-03-13, 2696👍, 0💬

Suppose that data is an array of 1000 integers. Write a single function call that will sort the 100 elements data [222] through
Suppose that data is an array of 1000 integers. Write a single function call that will sort the 100 elements data [222] through data [321]. quicksort ((data + 222), 100); 2012-02-20, 2695👍, 0💬

When should you use multiple inheritance?
When should you use multiple inheritance? There are three acceptable answers: "Never," "Rarely," and "When the problem domain cannot be accurately modeled any other way." 2012-03-19, 2693👍, 0💬

What do you mean by inline function?
What do you mean by inline function? The idea behind inline functions is to insert the code of a called function at the point where the function is called. If done carefully, this can improve the application's performance in exchange for increased compile time and possibly (but not always) an increa... 2012-01-27, 2692👍, 0💬

What do you mean by binding of data and functions?
What do you mean by binding of data and functions? Encapsulation. 2012-02-16, 2691👍, 0💬

Is C an object-oriented language?
Is C an object-oriented language? C is not an object-oriented language, but limited object-oriented programming can be done in C. 2012-04-10, 2690👍, 0💬

What are the conditions that have to be met for a condition to be an invariant of the class?
What are the conditions that have to be met for a condition to be an invariant of the class? * The condition should hold at the end of every constructor. * The condition should hold at the end of every mutator (non-const) operation. 2012-01-12, 2689👍, 0💬

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.NET C C++ CSS DBA General HTML Java JavaScript JSP JUnit MySQL Networking Oracle Perl Perl PHP PL/SQL RSS Software QA SQL Server Struts Unix Windows XHTML XML