The Definitive Guide to Learning C++ In 2021

C++ Programming

Introduction: What is C++? Why learn it?

Many professionals nowadays are opting for computer programming languages. One of the popular programming languages is C++.

C++ is a general-purpose, multi-paradigm, compiled, computer programming language. It has strong support for structured programming, lexical variable scope and recursion.

It also provides support for object-oriented programming through C++ classes and templates. It has many standard libraries that allow it to be used in a wide variety of areas including system software, application software, device drivers etc.

C++ was originally designed as an extension to the C programming language but later evolved in different directions.

The above given overview about C++ will be useful for those who are looking forward to start learning this language or are already in the process of learning it.

What do you need to get started with learning a new language?

C is a general-purpose programming language that has wide applicability in the software industry. It is also one of the most popular languages used to create an operating system.

If you are interested in learning how to code, there are plenty of free resources available for beginners who want to learn C.

There are many great applications and tutorials currently available for this language. So, whether you want to learn how to code on your own or just need some help with your homework, there is always something online that can help you out!

One of best and detailed tutorials is available on JavaTPoint CPP tutorials

If you want to practice what you've learned from tutorials, start by visiting W3Schools CPP Tutorial section and selecting the "Try it yourself" option. In this mode, you can run a small C++ program on your own and look over the code.

We have free online MCQs that are focused on C++. Click here to see them!

Steps To Learn The Basics Of C++ Programming Language And Become Proficient In 2021

  1. Understand the basics of programming language syntax
  2. Learn about C++ data types and operators
  3. Learn about C++ control statements
  4. Learn about loops and recursion
  5. Take up a new project after completing the above steps

Learn the Basics of Object Oriented Programming in C++

In this section, we will learn the basics of Object-Oriented Programming in C++. We will start with a brief introduction to what OOP is and why it is used. We will then look at the various components of a class and how they relate to each other. Finally, we will put together a simple class and program to take input from the keyboard and print it on the screen.

Object-Oriented Programming (or Object-Oriented Analysis & Design) is an approach to software development that focuses on modelling the things (objects) in your application domain. Software engineers typically write programs by combining many small classes which model one unit of functionality into larger entities called frameworks or applications according to their needs.

What are Objects?

Object-oriented programming is a methodology that uses objects to represent the real world. In object-oriented programming, everything is an object.

For example, a program might have a "car" object that has properties like make, model, and color. The car object would also have methods like "drive()" or "turnOnAC()."Classes and Objects:

The language is object-oriented and encourages developers to use classes and objects.

A class is a template for creating objects, which are instances of that class. The objects can contain different data and behaviour which define their appearance and actions in the system.

Objects can be created as an instance of a particular class or as a pointer to the corresponding type stored in the computer's memory.

Constructors and Destructors

Constructors and destructors are two important features of the object-oriented programming language, C++. They are used to initialize and destroy objects respectively.

Methods and Attributes:

Methods are functions that belongs to the class.

There are two ways to define functions that belong to a class:

  • Inside class definition
  • Outside class definition

You access methods just like you access attributes; by creating an object of the class and using the dot syntax (.)

To define a function outside the class definition, you have to declare it inside the class and then define it outside of the class. This is done by specifying the name of the class, followed the scope resolution :: operator, followed by the name of the function:

Inheritance and Polymorphism:

Inheritance and Polymorphism are two concepts that help developers create classes and objects. Inheritance is used when one class wants to inherit all the properties of another class. Polymorphism is used when one object wants to be able to behave in different ways depending on what type of object it is.

Inheritance allows programmers to create a new class from an existing one, so the new class will have all the properties of the old one and some more by default. This way, we can create new classes that behave in a similar way but don't share any code with each other, just like we can use classes for cars and bicycles with some shared behaviours and some specific behaviour unique only for each type of vehicle.

Polymorphism is a powerful concept in object-oriented programming, and a key feature of C++.

The idea behind polymorphism is to do more with less code. It is a more general form of abstraction, enabling one to use the same operations on different data types by treating them differently. Polymorphism also means that the same operation can produce different results, depending on the object it's acting on at any given time.

Polymorphism is often grouped together with inheritance and encapsulation as three of the main features of object-oriented programming languages such as C++.

Conclusion - Why should you invest your time and money into learning this language?

C++ is a high level programming language that has been around for more than three decades.

It is a general purpose language, which means it can be used on a wide range of platforms and tasks. It has been used to make video games, personal finance software, operating systems, and even desktop applications.

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