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C++/OOPS Interview Questions With Answers - Part XVI.

Here, are some sample questions based on "C++/OOPS Programming language". Read it carefully as these questions will help you in cracking any interview.

76) What do you mean by a static data member and a static member function?

Answer: A static data member is a class data member common to all the objects of a class. A static member function is a member function that can access only the static data members.

77) What is modularity in C++?

Answer: Modularity is the property of a system that has been decomposed into a set of cohesive and loosely coupled modules. In other words, modularity is the act of partitioning a program into individual components is called modularity.

78) What do you mean by data abstraction?

Answer: Data abstraction is the act of representing essential features without including the background details.

79) What is a pointer? How will you define a pointer to an integer and a pointer to a character?

Answer: A pointer is a variable which holds a memory address which is usually the location of another variable in memory.

A pointer, say ptr, to integer is declared as int *ptr; and a pointer, say cptr, is declared to a character as char *cptr.

80) How does a pointer variable differ from a simple variable?

Answer: A simple variable stores a data value whereas a pointer variable stores a memory address of another variable in the memory.


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