C++

What is C++?

C++ is a general-purpose programming language. It was created by Bjarne Stroustrup at Bell Labs circa 1980. C++ is very similar to C (invented by Dennis Ritchie in the early 1970s). C++ is so much compatible with C that it will probably compile over 99% of C programs without changing a line of source code. Though, C++ is a lot well-structured and safer language than C as it OOPs based.

Some computer languages are written for a specific purpose. Like, Java was initially devised to control toasters and some other electronics. C was developed for programming OS. Pascal was conceptualized to teach proper programming techniques. But C++ is a general-purpose language.

Popular programming languages in use?

Popular languages that are mainly in use are Java, C++, Python, and C.

Lower level languages like

  • Assembly Language
  • C
  • C++

These languages force the programmer to think more about the problem in computer programming terms and its implementations, instead of the business logic.

Is C++ best programming language?

The answer depends on perspective and requirements. Some tasks can be done in C++, though not very quickly. For example, designing GUI screens for applications.

Other languages like Visual Basic, Python have GUI design elements built into them. Therefore, they are better suited for GUI type of task.

Some of the scripting languages that provide extra programmability to applications. Such as MS Word and even photoshop tend to be variants of Basic, not C++.

C++ is still used widely, and the most famous software have their backbone in C++.

Who uses C++?

Some of today’s most visible used systems have their critical parts written in C++.

Examples are Amadeus (airline ticketing)

  • Bloomberg (financial formation),
  • Amazon (Web commerce), Google (Web search)
  • Facebook (social media)

Basic Concepts of C++

C++ Variables

  • Variables are the backbone of any programming language.
  • A variable is merely a way to store some information for later use. We can retrieve this value or data by referring to a “word” that will describe this information.
  • Once declared and defined they may be used many times within the scope in which they were declared.

C++ Control Structures

  • When a program runs, the code is read by the compiler line by line (from top to bottom, and for the most part left to right). This is known as “code flow.
  • When the code is being read from top to bottom, it may encounter a point where it needs to make a decision. Based on the decision, the program may jump to a different part of the code. It may even make the compiler re-run a specific piece again, or just skip a bunch of code.
  • You could think of this process like if you were to choose from different courses from Guru99. You decide, click a link and skip a few pages. In the same way, a computer program has a set of strict rules to decide the flow of program execution.

C++ Syntax

The syntax is a layout of words, expression, and symbols.

Well, it’s because an email address has its well-defined syntax. You need some combination of letters, numbers, potentially with underscores (_) or periods (.) in between, followed by an at the rate (@) symbol, followed by some website domain (company.com).

So, syntax in a programming language is much the same. They are some well-defined set of rules that allow you to create some piece of well-functioning software.

But, if you don’t abide by the rules of a programming language or syntax, you’ll get errors.

C++ Tools

In the real world, a tool is something (usually a physical object) that helps you to get a certain job done promptly.

Well, this holds true with the programming world too. A tool in programming is some piece of software which when used with the code allows you to program faster.

There are probably tens of thousands, if not millions of different tools across all the programming languages.

Most crucial tool, considered by many, is an IDE, an Integrated Development Environment. An IDE is a software which will make your coding life so much easier. IDEs ensure that your files and folders are organized and give you a nice and clean way to view them.