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Support for Java in Visual Studio Code is provided through a wide range of extensions. Combined with the power of core VS Code, these extensions give you a lightweight and performant code editor that also supports many of the most common Java development techniques.

This article will give you an overview of different capabilities of Visual Studio Code for Java developers. For a quick walkthrough of editing, running, and debugging a Java program with Visual Studio Code, use the button below.

Overview

VS Code provides essential language features such as code completion, refactoring, linting, formatting, and code snippets along with convenient debugging and unit test support. VS Code also integrates with tooling and frameworks such as Maven, Tomcat, Jetty, and Spring Boot. Leveraging the power of Visual Studio Code, Java developers get an excellent tool for both quick code editing and also the full debugging and testing cycle. It's a great choice for your Java work if you're looking for a tool which:

• Is fast, lightweight, free, and open source.
• Supports many other languages, not just Java.
• Helps start your Java journey without installing and learning a complex IDE.
• Provides great microservices support including popular frameworks, container tooling, and cloud integration.
• Offers team-based collaboration features such as Visual Studio Live Share.
• Improves your productivity through IntelliSense and other code-aware editing features.

Install Visual Studio Code for Java

To help you set up quickly, we recommend you use the Coding Pack for Java, which is the bundle of VS Code, the Java Development Kit (JDK), and a collection of suggested extensions by Microsoft. The Coding Pack can also be used to fix an existing development environment.

Install the Coding Pack for Java - macOS

Note: The Coding Pack for Java is only available for Windows and macOS. For other operating systems, you will need to manually install a JDK, VS Code, and Java extensions.

If you have already installed VS Code and want to add Java support to it, we recommend to use Java Extension Pack, a collection of extensions suggested by Microsoft:

Alternatively, you can add Java language support to VS Code by installing the popular Java extensions by yourself.

Download VS Code - If you haven't downloaded VS Code yet, quickly install for your platform (Windows, macOS, Linux).

There are also other popular Java extensions you can pick for your own needs, including:

Thanks to the great Java community around VS Code, the list doesn't end there. You can search for more Java extensions easily within VS Code:

1. Go to the Extensions view (⇧⌘X (Windows, Linux Ctrl+Shift+X)).
2. Filter the extensions list by typing 'java'.

This document describes some of the key features included in those Java extensions.

Getting started

NOTE: If you are using VS Code on Windows and want to take advantage of the Windows Subsystem for Linux, see Developing in WSL.

Before you start, you must have the Java SE Development Kit (JDK) on your local environment. To run the VS Code for Java extension, Java SE 11 or above version is required; for projects, VS Code for Java supports projects with version 1.5 or above. For how to configure, refer to Configure JDK.

For developers new to Java or new to VS Code, we provide a Getting Started experience. Once you've installed the Java Extension Pack, you can open the Getting Started experience from within VS Code with the Java: Getting Started command from the Command Palette. Open the Command Palette (⇧⌘P (Windows, Linux Ctrl+Shift+P)) and type 'Java: Getting Started'.

Working with Java source files

You can use VS Code to read, write, run, and debug Java source file(s) without creating a project. VS Code for Java supports two modes, lightweight and standard. Lightweight mode is ideal for scenarios that only deal with source file(s). If you want to work with a full scale project, standard mode will be required. You can easily switch from lightweight mode to standard mode, when needed. To learn more, see Lightweight Mode.

Working with Java project

There are three things you must understand to work with Java in VS Code:

1. How does VS Code handle Workspaces?
2. How does VS Code handle Java?
3. How does VS Code handle Workspaces that contain Java?

VS Code Workspaces

In Visual Studio Code, a 'Workspace' means a collection of one or more filesystem folders (and their children) and all of the VS Code configurations that take effect when that 'Workspace' is open in VS Code. There are two kinds of 'Workspaces' in VS Code, 'folder workspaces' and 'multi-root workspaces'.

A 'folder workspace' is presented by VS Code when you open a filesystem folder (directory) in VS Code.

A 'multi-root workspace' can refer to multiple folders (directories) from disparate parts of the file system and VS Code displays the contents of the folder(s) of the workspace together in the File Explorer. To learn more, see Multi-root Workspaces.

Java project in VS Code

In contrast to IDEs such as IntelliJ IDEA, NetBeans, or Eclipse, the concept of a 'Java project' is provided entirely by extensions, and is not a core concept in the base VS Code. When working with 'Java projects' in VS Code, you must have the necessary extensions installed to work with those project files.

For example, Maven, Eclipse, and Gradle Java projects are supported through Language Support for Java(TM) by Red Hat, by utilizing M2Eclipse, which provides Maven support, and Buildship, which provides Gradle support through the Eclipse JDT Language Server.

With Maven for Java, you can generate projects from Maven Archetypes, browse through all the Maven projects within your workspace, and execute Maven goals easily from an embedded explorer. Projects can also be created and managed with the Project Manager for Java extension.

Visual Studio Code also supports working with standalone Java files outside of a Java project, described in the Java Tutorial with VS Code.

VS Code Workspaces that contain Java project

Assuming the necessary Java extensions are installed, opening a VS Code workspace that contains Java artifacts will cause those extensions to understand those artifacts and present options for working with them.

More details about Java project support can be found in Java Project Management in Visual Studio Code and Build Tools.

Editing

Code Navigation

Java in Visual Studio Code also supports source code navigation features such as search for symbol, Peek Definition, and Go to Definition. The Spring Boot Tools extension provides enhanced navigation and code completion support for Spring Boot projects.

One of the key advantages of VS Code is speed. When you open your Java source file or folder, within a few seconds, with the help of Lightweight Mode, you will be able to navigate your code base with Outline view as well as commands such as Go to Definition and Go to Reference. This is especially useful when you open a project for the first time.

Code Completion

IntelliSense is a general term for language features, including intelligent code completion (in-context method and variable suggestions) across all your files and for built-in and third-party modules. VS Code supports code completion and IntelliSense for Java through Language Support for Java(TM) by Red Hat. It also provides AI-assisted IntelliSense called IntelliCode by putting what you're most likely to use at the top of your completion list.

See also in Java Code Navigation and Editing. VS Code also supports a range of Refactoring and Linting features.

Debugging

Debugger for Java is a lightweight Java Debugger based on Java Debug Server. It works with Language Support for Java by Red Hat to allow users to debug Java code within Visual Studio Code.

Starting a debugging session is easy, click on the Run|Debug button available at the CodeLens of your main() function, or press F5. The debugger will automatically generate the proper configuration for you.

Although it's lightweight, the Java debugger supports advanced features such as expression evaluation, conditional breakpoints, and hot code replacement. For more debugging related information, visit Java Debugging.

Testing

With the support from the Java Test Runner extension, you can easily run, debug, and manage your JUnit and TestNG test cases.

For more about testing, read Testing Java.

Spring Boot, Tomcat, and Jetty

To further improve your Java productivity in VS Code, there are extensions for most popular frameworks and tools such as Spring Boot, Tomcat, and Jetty created by the community.

The Tomcat extension includes an explorer to easily navigate and manage your Tomcat servers. You can create, start, debug, stop, and rename your Tomcat server with the extension.

See Application Servers to learn more about support for Tomcat and Jetty as well as other application servers with VS Code.

Spring Boot support is provided by Pivotal. There are also Spring Initializr Java Support and Spring Boot Dashboard extensions available from Microsoft to further improve your experience with Spring Boot in Visual Studio Code.

See Spring Boot with VS Code to learn more about Spring Boot support with VS Code and also Deploy to Azure Web Apps or Deploy to Azure Spirng Cloud to learn more about deploying Spring apps to Azure from VS Code.

Next steps

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Learn more about Java in VS Code

Read on to find out more about Visual Studio Code:

• Basic Editing - Learn about the powerful VS Code editor.
• Code Navigation - Move quickly through your source code.
• Tasks - use tasks to build your project and more
• Debugging - find out how to use the debugger with your project

Visual Studio Code is a cross-platform script editor by Microsoft. Together with thePowerShell extension, it provides a rich and interactive script editing experience, makingit easier to write reliable PowerShell scripts. Visual Studio Code with the PowerShell extension isthe recommended editor for writing PowerShell scripts.

It supports the following PowerShell versions:

• PowerShell 7 and up (Windows, macOS, and Linux)
• PowerShell Core 6 (Windows, macOS, and Linux)
• Windows PowerShell 5.1 (Windows-only)

Note

Visual Studio Code is not the same as Visual Studio. Crypt of the necrodancer mac free download.

Getting started

Before you begin, make sure PowerShell exists on your system. For modern workloads on Windows,macOS, and Linux, see the following links:

For traditional Windows PowerShell workloads, see Installing Windows PowerShell.

Important

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The Windows PowerShell ISE is still available for Windows. However, it is no longer inactive feature development. The ISE does not work with PowerShell 6 and higher. As a component ofWindows, it continues to be officially supported for security and high-priority servicing fixes.We have no plans to remove the ISE from Windows.

Editing with Visual Studio Code

1. Install Visual Studio Code. For more information, see the overviewSetting up Visual Studio Code.

   There are installation instructions for each platform:

   • Windows: follow the installation instructions on theRunning Visual Studio Code on Windows page.
   • macOS: follow the installation instructions on theRunning Visual Studio Code on macOS page.
   • Linux: follow the installation instructions on theRunning Visual Studio Code on Linux page.

2. Install the PowerShell Extension.

   1. Launch the Visual Studio Code app by typing code in a console or code-insidersif you installed Visual Studio Code Insiders.

   2. Launch Quick Open on Windows or Linux by pressing Ctrl+P. On macOS,press Cmd+P.

   3. In Quick Open, type ext install powershell and press Enter.

   4. The Extensions view opens on the Side Bar. Select the PowerShell extension from Microsoft.You should see a Visual Studio Code screen similar to the following image:

   5. Click the Install button on the PowerShell extension from Microsoft.

   6. After the install, if you see the Install button turn into Reload, Click on Reload.

   7. After Visual Studio Code has reloaded, you're ready for editing.

For example, to create a new file, click File > New. To save it, click File > Save and thenprovide a file name, such as HelloWorld.ps1. To close the file, click the X next to the filename. To exit Visual Studio Code, File > Exit.

Installing the PowerShell Extension on Restricted Systems

Some systems are set up to require validation of all code signatures. You may receive the followingerror:

This problem can occur when PowerShell's execution policy is set by Windows Group Policy. Tomanually approve PowerShell Editor Services and the PowerShell extension for Visual Studio Code,open a PowerShell prompt and run the following command:

You're prompted with Do you want to run software from this untrusted publisher? Type A to runthe file. Then, open Visual Studio Code and check that the PowerShell extension is functioningproperly. If you still have problems getting started, let us know on GitHub issues.

Note

The PowerShell extension for Visual Studio Code does not support running in constrained languagemode. For more information, see GitHub issue #606.

Choosing a version of PowerShell to use with the extension

With PowerShell Core installing side-by-side with Windows PowerShell, it's now possible to use aspecific version of PowerShell with the PowerShell extension. This feature looks at a few well-knownpaths on different operating systems to discover installations of PowerShell.

Use the following steps to choose the version:

1. Open the Command Palette on Windows or Linux withCtrl+Shift+P. On macOS, useCmd+Shift+P.
2. Search for Session.
3. Click on PowerShell: Show Session Menu.
4. Choose the version of PowerShell you want to use from the list, for example: PowerShell Core.

If you installed PowerShell to a non-typical location, it might not show up initially in the SessionMenu. You can extend the session menu by adding your own custom pathsas described below.

Note

The PowerShell session menu can also be accessed from the green version number in the bottom rightcorner of status bar. Clicking this version number opens the session menu.

Configuration settings for Visual Studio Code

First, if you're not familiar with how to change settings in Visual Studio Code, we recommendreading Visual Studio Code's settings documentation.

After reading the documentation, you can add configuration settings in settings.json. Download acrobat 11 mac.

If you don't want these settings to affect all files types, Visual Studio Code also allowsper-language configurations. Create a language-specific setting by putting settings in a[<language-name>] field. For example: Antares free download mac.

Tip

For more information about file encoding in Visual Studio Code, see Understanding file encoding.

Also, check out How to replicate the ISE experience in Visual Studio Code for othertips on how to configure Visual Studio Code for PowerShell editing.

Adding your own PowerShell paths to the session menu

You can add other PowerShell executable paths to the session menu through theVisual Studio Code setting:powershell.powerShellAdditionalExePaths.

Add an item to the list powershell.powerShellAdditionalExePaths or create the list if it doesn'texist in your settings.json:

Each item must have:

• exePath: The path to the pwsh or powershell executable.
• versionName: The text that will show up in the session menu.

To set the default PowerShell version, set the value powershell.powerShellDefaultVersion to thetext displayed in the session menu (also known as the versionName):

After you've configured this setting, restart Visual Studio Code or to reload the current VisualStudio Code window from the Command Palette, type Developer: Reload Window.

If you open the session menu, you now see your additional PowerShell versions!

Note

If you build PowerShell from source, this is a great way to test out your local build ofPowerShell.

Using an older version of the PowerShell Extension for Windows PowerShell v3 and v4

The current PowerShell extension doesn't support PowerShell v3 and v4. However, you canuse the last version of the extension that supports PowerShell v3 and v4.

Caution

There will be no additional fixes to this older version of the extension. It's provided 'AS IS'but is available for you if you are still using Windows PowerShell v3 and Windows PowerShell v4.

First, open the Extension pane and search for PowerShell. Then click the gear and selectInstall another version...

Then select the 2020.1.0 version. This version of the extension was the last version tosupport v3 and v4. Be sure to add the following setting so that your extension version doesn'tupdate automatically:

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Version 2020.1.0 will work for the foreseeable future. However, Visual Studio Code couldimplement a change that breaks this version of the extension. Because of this, and lack of support,we recommend:

• Upgrading to Windows PowerShell 5.1
• Install PowerShell 7, which is a side-by-side install to Windows PowerShell and works thebest with the PowerShell extension

Debugging with Visual Studio Code

No-workspace debugging

In Visual Studio Code version 1.9 (or higher), you can debug PowerShell scripts without opening thefolder that contains the PowerShell script.

1. Open the PowerShell script file with File > Open File..
2. Set a breakpoint - select a line then press F9
3. Press F5 to start debugging

You should see the Debug actions pane appear which allows you to break into the debugger,step, resume, and stop debugging.

Workspace debugging

Workspace debugging refers to debugging in the context of a folder that you've opened from theFile menu using Open Folder... The folder you open is typically your PowerShell projectfolder or the root of your Git repository. Workspace debugging allows you to define multiple debugconfigurations other than just debugging the currently open file.

Follow these steps to create a debug configuration file:

1. Open the Debug view on Windows or Linux by pressingCtrl+Shift+D. On macOS, pressCmd+Shift+D.

2. Click the create a launch.json file link.

3. From the Select Environment prompt, choose PowerShell.

4. Choose the type of debugging you'd like to use:

   • Launch Current File - Launch and debug the file in the currently active editor window
   • Launch Script - Launch and debug the specified file or command
   • Interactive Session - Debug commands executed from the Integrated Console
   • Attach - Attach the debugger to a running PowerShell Host Process

Visual Studio Code creates a directory and a file .vscodelaunch.json in the root of yourworkspace folder to store the debug configuration. If your files are in a Git repository, youtypically want to commit the launch.json file. The contents of the launch.json file are:

This file represents the common debug scenarios. When you open this file in the editor, you see anAdd Configuration.. button. You can click this button to add more PowerShell debugconfigurations. One useful configuration to add is PowerShell: Launch Script. With thisconfiguration, you can specify a file containing optional arguments that are used whenever youpress F5 no matter which file is active in the editor.

After the debug configuration is established, you can select which configuration you want to useduring a debug session. Select a configuration from the debug configuration drop-down in theDebug view's toolbar.

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Troubleshooting the PowerShell extension for Visual Studio Code

If you experience any issues using Visual Studio Code for PowerShell script development, see thetroubleshooting guide on GitHub.

Useful resources

There are a few videos and blog posts that may be helpful to get you started using the PowerShellextension for Visual Studio Code:

Videos

Blog posts

PowerShell extension project source code

The PowerShell extension's source code can be found on GitHub.

Vs Code Visual Basic Script

If you're interested in contributing, Pull Requests are greatly appreciated. Follow along with thedeveloper documentation on GitHub to get started.