You have learnt about member functions earlier. We now expand the idea and talk about private member function and nesting of function in C++. A function declared inside the class’s private section is known as the “private member function”. A private member function is accessible through the only public member function. Data Members Data members …
An object can be passed to a function just like we pass a structure to a function. we can pass the object of another class to a function of a different class. We can pass class objects as arguments and return them from a function. When we want to initialize all data members of an …
What is a file pointer? A pointer is used to handle and keep track of the files being accessed. Every file maintains two pointers called get_pointer (in input mode file) and put_pointer (in output mode file), which tells the current position where reading or writing will take place with the use of opening modes and …
File streams are the libraries which are utilized in programming. These use the iostream preferred standard library because it offers cin and cout strategies which are used for analyzing from the input and writing to the output respectively. A file is a collection of associated data stored in a particular area on a disk. The …
In this article, you are going to learn about an important concept in C++ called the virtual functions and pure virtual functions. However, it is recommended that you learn about basics of pointer, classes and derived classes before reading further. What is Virtual Function? A virtual function is a special type of member function that …
C++ language allows you to create a new type of variable called reference variable. What Is A Reference Variable ? A variable that store values is called a value variable. The C++ reference variable is an alias for a value variable. It refers to the memory location of the value variable like pointer. Any changes …
C++ strings store textual information. The string variable has a sequence of characters enclosed by double quotes. In C++ string basics, we cover following topics. Types of strings How to initialise strings ? How to read input strings ? Types Of Strings A string is a character array terminated by a null (\0)character. The C++ …
Data types describe the kind of data so that computer can store or manipulate them appropriately. This is the reason to declare a data type in C++ programming. Data types are also necessary because data items such as numbers are used in expressions. If there is a mismatch, for example integer and real numbers in …
C++ is a very popular programming language. Every C++ program has a general structure that it must follow. Here is common structure of a C++ program. G C++ Program Structure Header Section The header section is used for Including header files Declaring global variables Declaring functions Defining constants You can divide C++ functions into two …
A C++ multidimensional array has more dimensions identified by the number of subscripts. In this article, you will learn about a two-dimensional array in detail. Two-dimensional Array A two-dimensional array has rows and columns. The horizontal arrangement of elements within a two-dimensional array is row and vertical arrangement is a column. For example, A[2][4] means …
