What is the difference between c# and C? which one is better or more marketable? and what is c++?

Question

What is the difference between c#, C-objective and C? which one is better or more marketable? and what is c++?

Answer 1

C and C# are two different computer programming languages. C was originally developed by Dennis Ritchie at AT&T Bell Labs between 1969 and 1973. It has a free-format program source code. C#, also known as C sharp, is an object oriented programming language. C# is a multi-paradigm programming language. C# is based on the C programming language. It was originally developed by Anders Hejlsberg for Microsoft for use in its .NET framework.



C and C++ are two different computer programming languages. C was originally developed by Dennis Ritchie at AT&T Bell Labs between 1969 and 1973. It has a free-format program source code. C++ is another general-purpose programming language, but is developed from the originally C programming language. It was developed by Bjarne Stroustrup at Bell Labs starting in 1979. C++ was originally named C with Classes. It was renamed C++ in 1983.

Answer 2

C# distinguishes between value types and reference types. Simple types (int, long, double, and so on) and structs are value types, while all classes are reference types, as are Objects. Value types hold their value on the stack, like variables in C++, unless they are embedded within a reference type. Reference type variables sit on the stack, but they hold the address of an object on the heap, much like pointers in C++. Value types are passed to methods by value (a copy is made), while reference types are effectively passed by reference.



Structs

Structs are significantly different in C#. In C++ a struct is exactly like a class, except that the default inheritance and default access are public rather than private. In C# structs are very different from classes. Structs in C# are designed to encapsulate lightweight objects. They are value types (not reference types), so they're passed by value. In addition, they have limitations that do not apply to classes. For example, they are sealed, which means they cannot be derived from or have any base class other than System.ValueType, which is derived from Object. Structs cannot declare a default (parameterless) constructor.

On the other hand, structs are more efficient than classes so they're perfect for the creation of lightweight objects. If you don't mind that the struct is sealed and you don't mind value semantics, using a struct may be preferable to using a class, especially for very small objects.

It depends on what market.

For financial market: C++

For game: C++,

Python For embed or system: C, Assembly

For iPhone, iPad apps: Objective-C, Javascript

For web app: Java, PHP, Perl, ASP.NET, SQL, noSQL, Javascript(jQuery, etc), Hadoop

For system admin: Perl, Shell, Python

For engineering, scientific: Fortran, LISP

Answer 3

These courses have been designed for people who have little or no programming experience yet:



C



C is one of the most widely used programming languages and often used as an introduction to programming. It has influenced many languages that came after it, and knowledge of C will make learning later languages, such as Objective-C (used by Apple), easier. It influences many later languages you could want to learn, so starting with C will give you a deeper understanding of how computers work.



Java



Java is a higher level language which is designed to be compatible with any operating system. It has similar syntax to C and C++. It’s a great programming language to start with because it is widely used and practical, however it won’t give you as deep of an understanding of computer operation as a lower level language like C will.



C++



C++ bridges the gap between a language like C and Java as it has features of both low-level and high-level languages. It’s another commonly used language that has a wide range of uses and compatibility. It’s based off of C and adds object-oriented features. It has also influenced many other languages such as C# and Java.



Python



Python is a language that was designed with human readability in mind. Because of this, it doesn’t take as much code to execute programs as other languages. It’s a great, easy way to learn recurring concepts in computer science and has real world use in the creation of scripts.



Ruby



Ruby has similar function to Python but is less readable. It’s more object-oriented than Python and is similarly designed with simplicity in mind. It has many applications, but is most often used for web applications.



HTML and CSS



HTML and CSS are used for webpage design. While these languages won’t really help pave the way for learning more traditional programming languages, they are essential for webpage design. HTML (HyperText Markup Language) is a “markup language” which allows you to put content into a webpage whereas CSS (Cascading Style Sheets), is used to format and define the layout of a page.



MIT App Inventor for Android



If you aren’t interested in programming as a profession (at least at the moment) it may be worth looking at using the MIT App Inventor for Android. It requires no coding, but will teach you how programmers think and provide knowledge on some concepts in computing. Plus, you’ll end up being able to make Android apps once you’ve mastered it!





What’s next? If you already have knowledge of another programming language then these are great follow-up languages:



C#



C# is primarily used for Windows applications in the .NET Framework. Learning C# is easy if you have experience in C, C++, or Java. The syntax is similar. It’s popularity has been increasing as C# is used for third-party apps on Windows 8 or Windows Phone.



Objective-C



Objective-C is primarily used for Apple’s operating systems, OSX (for Macs) and iOS (for iPhone and iPad). If you are looking to develop for Mac, Objective-C is the way to go. Apple provides lots of support for learning Objective-C through their developer program.



Javascript



Javascript (little relation to Java) is a common language used to make webpages more dynamic. With a syntax similar to C, it doesn’t require a lot of effort to set up as it’s built into web browsers. It’s also used in other applications such as PDFs.



PHP



PHP is another language often used for web development, although it works well as a general-purpose language as well. PHP can be implemented directly into HTML. Those looking to learn PHP should already know HTML, CSS, and Javascript.