Visual Studio For Mac Can I Program In C++

C++ Visual Studio For Mac
Visual Studio For Mac Can I Program In C++ Tutorial
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Visual Studio On A Mac

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The following procedure creates a C# version of the traditional 'Hello World!' program. The program displays the string Hello World!

For more examples of introductory concepts, see Getting Started with Visual C# and Visual Basic.

Note

Your computer might show different names or locations for some of the Visual Studio user interface elements in the following instructions. The Visual Studio edition that you have and the settings that you use determine these elements. For more information, see Personalizing the IDE.

To create and run a console application

Start Visual Studio.
On the menu bar, choose File, New, Project.
The New Project dialog box opens.
Expand Installed, expand Templates, expand Visual C#, and then choose Console Application.
In the Name box, specify a name for your project, and then choose the OK button.
The new project appears in Solution Explorer.
If Program.cs isn't open in the Code Editor, open the shortcut menu for Program.cs in Solution Explorer, and then choose View Code.
Replace the contents of Program.cs with the following code.
Choose the F5 key to run the project. A Command Prompt window appears that contains the line Hello World!

Next, the important parts of this program are examined.

The first line contains a comment. The characters // convert the rest of the line to a comment.

You can also comment out a block of text by enclosing it between the /* and */ characters. This is shown in the following example.

Main method

A C# console application must contain a Main method, in which control starts and ends. The Main method is where you create objects and execute other methods.

The Main method is a static method that resides inside a class or a struct. In the previous 'Hello World!' example, it resides in a class named Hello. You can declare the Main method in one of the following ways:

It can return void.
It can also return an integer.
With either of the return types, it can take arguments.
-or-

The parameter of the Main method, args, is a string array that contains the command-line arguments used to invoke the program. Unlike in C++, the array does not include the name of the executable (exe) file.

C++ Visual Studio For Mac

For more information about how to use command-line arguments, see the examples in Main() and Command-Line Arguments and How to: Create and Use Assemblies Using the Command Line.

The call to ReadKey at the end of the Main method prevents the console window from closing before you have a chance to read the output when you run your program in debug mode, by pressing F5.

Input and output

C# programs generally use the input/output services provided by the run-time library of the .NET Framework. The statement System.Console.WriteLine('Hello World!'); uses the WriteLine method. This is one of the output methods of the Console class in the run-time library. It displays its string parameter on the standard output stream followed by a new line. Other Console methods are available for different input and output operations. If you include the using System; directive at the beginning of the program, you can directly use the System classes and methods without fully qualifying them. For example, you can call Console.WriteLine instead of System.Console.WriteLine: