Advanced.NET Core development framework, now for the Mac.NET Core Framework, also called CoreFX, is an advanced library that provides developers with a collection of classes, file systems, consoles, XML and async and other similar components. Secure from the start. Start secure and push with confidence. Docker Desktop now includes vulnerability scanning powered by Snyk, which scans your containers and provides actionable insights and recommendations for remediation in your images.
I have bought a MacBook lately and wanted to learn how to work with .NET Core. The first thing is installing the .NET Core libraries and tools of course, which is available from:
.NET Core requires OpenSSL 1.0.0 or later, but Mac OS X currently defaults to OpenSSL 0.9.8. So we first download the sources for the latest stable OpenSSL release 1.0.2h:
Next unpack the OpenSSL Sources:
Then compile and install OpenSSL to /usr/local/ssl/macos-x86_64
:
Next we need to create symbolic links for the OpenSSL binaries and libraries in the /usr/local
directory, or the .NET Core tools won't find them.
And that's it.
You can now start with .NET Core.
-->This tutorial shows how to create and run a .NET Core console application using Visual Studio for Mac.
Note
Your feedback is highly valued. There are two ways you can provide feedback to the development team on Visual Studio for Mac:
- In Visual Studio for Mac, select Help > Report a Problem from the menu or Report a Problem from the Welcome screen, which will open a window for filing a bug report. You can track your feedback in the Developer Community portal.
- To make a suggestion, select Help > Provide a Suggestion from the menu or Provide a Suggestion from the Welcome screen, which will take you to the Visual Studio for Mac Developer Community webpage.
Prerequisites
Visual Studio for Mac version 8.6 or later. Select the option to install .NET Core. Installing Xamarin is optional for .NET Core development. For more information, see the following resources:
- Tutorial: Install Visual Studio for Mac.
- Supported macOS versions.
- .NET Core versions supported by Visual Studio for Mac.
Create the app
Create a .NET Core console app project named 'HelloWorld'.
Start Visual Studio for Mac.
Select New in the start window.
In the New Project dialog, select App under the Web and Console node. Select the Console Application template, and select Next.
In the Target Framework drop-down of the Configure your new Console Application dialog, select .NET Core 3.1, and select Next.
Type 'HelloWorld' for the Project Name, and select Create.
The template creates a simple 'Hello World' application. It calls the Console.WriteLine(String) method to display 'Hello World!' in the terminal window.
The template code defines a class, Program
, with a single method, Main
, that takes a String array as an argument:
Main
is the application entry point, the method that's called automatically by the runtime when it launches the application. Any command-line arguments supplied when the application is launched are available in the args
array.
Run the app
Press ⌥⌘↵ (option+command+enter) to run the app without debugging.
Close the Terminal window.
Enhance the app
Net Core Mac Download Windows 10
Enhance the application to prompt the user for their name and display it along with the date and time.
In Program.cs, replace the contents of the
Main
method, which is the line that callsConsole.WriteLine
, with the following code:This code displays a prompt in the console window and waits until the user enters a string followed by the enter key. It stores this string in a variable named
name
. It also retrieves the value of the DateTime.Now property, which contains the current local time, and assigns it to a variable nameddate
. And it displays these values in the console window. Finally, it displays a prompt in the console window and calls the Console.ReadKey(Boolean) method to wait for user input.The
n
represents a newline character.The dollar sign (
$
) in front of a string lets you put expressions such as variable names in curly braces in the string. The expression value is inserted into the string in place of the expression. This syntax is referred to as interpolated strings.Press ⌥⌘↵ (option+command+enter) to run the app.
Respond to the prompt by entering a name and pressing enter.
Close the terminal.
Next steps
.net Core 2.2 Mac Download
In this tutorial, you created a .NET Core console application. In the next tutorial, you debug the app.