Qt is a cross platform application development framework that allows developers to create applications for desktop, mobile and embedded platforms.It was developed by the finnish company, The Qt company. Qt provides a variety of tools and libraries to help developers create graphical user interfaces(GUIs) manage application data,handle networking and communication…

A class is a user-defined data type with a template that serves to define its properties.Once the class type has been defined, we can create “variables” of that type using declarations that are similar to the basic declarations. In Java, these variables are termed instances of classes. A class is a collection of objects. Classes don’t consume any space in the memory. Once a class has been defined. A large number of objects can be created using the same class. Therefore, Class is considered the blueprint for the object.

In java, SOLID principles are an object-oriented approach that are applied to software structure design. These five principles have changed the world of object-oriented programming, and also changed the way of writing software. The word SOLID acronym for: Single Responsibility Principle (SRP) Open-Closed Principle (OCP) Liskov Substitution Principle (LSP) Interface…

What is Python? Python is a popular programming language. It was created by Guido van Rossum, and released in 1991. Python is a general purpose, dynamic, high-level, and interpreted programming language. It supports Object Oriented programming approach to develop applications. …

What is Kotlin Kotlin is a general-purpose, statically typed, and open-source programming language. It runs on JVM and can be used anywhere Java is used today. It can be used to develop Android apps, server-side apps and much more. Kotlin Environment Setup (Command line) Since Kotlin runs on JVM, it is necessary to install JDK and setup the…

First of all, we know Swift…….. Swift was introduced in 2014 at Apples's Worldwide Developers Confrence. The development of Swift was started in 2010 by Chris Lattner with other programmers i.e. Doug Gregor, John McCall, Ted Kremenek, and Joe Groff at Apple. …

Hi friends welcome back this is the Ninth part of the series………… User Mode User mode is now almost within our reach, there are just a few more steps required to get there. Although these steps might seem easy they way they are presented in this chapter, they can be tricky to…

Hi friends welcome back this is the Eighth part of the series. Page Frame Allocation 1.Managing Available Memory 1 How Much Memory is There? First we need to know how much memory is available on the computer the OS is running on. The easiest way to do this is to read it from the multiboot structure…

First of all,you visit my last part of OWN OS…………….. Virtual Memory Virtual memory is an abstraction of physical memory. The purpose of virtual memory is generally to simplify application development and to let processes address more memory than what is actually physically present in the machine. …