Rekha Setia 
In C++, visibility modes refer to the accessibility of class members (such as variables and functions) from different parts of a program. C++ provides three visibility modes: public, private, and protected. These modes control the access levels of class members concerning the outside world and derived classes. Public: Members declared as public are accessible from … Read more
In C++, inheritance is a fundamental concept of object-oriented programming (OOP) that allows you to create a new class based on an existing class, known as the base or parent class. The new class is called the derived or child class. Inheritance facilitates code reuse and supports the creation of a hierarchy of classes. There … Read more
In C++, classes and objects are fundamental concepts that support object-oriented programming (OOP). Here’s a brief overview of classes and objects in C++: Classes: In C++, a class is a user-defined data type that allows you to encapsulate data members and member functions into a single unit. Classes are the building blocks of object-oriented programming … Read more
The <marquee> tag is an HTML element that was used in earlier versions of HTML to create a scrolling or moving text or image within a web page. It was primarily employed to add dynamic and attention-grabbing effects to text or images. The content within the <marquee> tag would continuously move across the screen in … Read more
In C++, the “this” pointer is a keyword that represents a pointer to the instance of the class to which the member function belongs. It is implicitly passed as a hidden argument to all member function calls. Here’s a basic explanation of the “this” pointer: Types of this pointer Pointer to the Current Object: Inside … Read more
In C++, enumeration (enum) is a user-defined data type that consists of named integral constants. Enums are useful for creating more readable and self-explanatory code by assigning names to numeric values. Here’s a basic example of how to use enums in C++: #include <iostream.h> // Define an enumeration named Color enum Color { RED, … Read more
An external style sheet in CSS is a separate file containing styles that can be linked to multiple HTML documents. This separation of styles from HTML content allows for better organization, easier maintenance, and consistent styling across multiple pages. Here’s how you can create and use an external style sheet in CSS: Create a CSS … Read more
In HTML (Hypertext Markup Language), heading tags are used to define headings or titles within a document. Headings provide structure and hierarchy to your content, indicating different levels of importance. HTML offers six levels of heading tags, ranging from <h1> to <h6>, where <h1> is the highest level and <h6> is the lowest. Here’s an … Read more
In HTML, you can create tables using the <table>, <tr>, <td>, and <th> tags. Here’s a basic example of an HTML table(with css): <!DOCTYPE html> <html> <head> <style> table { width: 100%; border-collapse: collapse; margin-bottom: 20px; } th, td { border: 1px solid #dddddd; text-align: left; … Read more
Certainly! C++ is a general-purpose programming language that was created as an extension of the C programming language. It was developed by Bjarne Stroustrup(Bjarne Stroustrup is a Danish computer scientist who is best known for his creation of the C++ programming language.) at Bell Labs in the early 1980s. C++ is known for its efficiency, … Read more