JDK-Dev is a mailing list for developers who are working on the Java Development Kit (JDK) or want to contribute to the OpenJDK project. The JDK is a software development environment that lets you create and run Java applications on various platforms. The OpenJDK project is an open source implementation of the Java Platform, Standard Edition (Java SE) .
If you are interested in JDK-Dev, you can subscribe to the mailing list by sending an email to firstname.lastname@example.org with the word \"subscribe\" in the subject line. You can also browse the archives of the mailing list at https://mail.openjdk.java.net/pipermail/jdk-dev/.
By joining JDK-Dev, you can participate in discussions about the design, development, and testing of the JDK. You can also report bugs, suggest enhancements, and submit patches for review. However, before you do that, you need to install a JDK on your system and set up your development environment.
How to Install a JDK?
A JDK is a prerequisite for developing Java applications and using JDK-Dev. You need to have a JDK version 1.5 or above installed on your system . There are different ways to obtain a JDK, depending on your platform and preference.
You can download a pre-built binary of the latest JDK release from Oracle's website at https://www.oracle.com/java/technologies/downloads/. There are different packages available for Linux, macOS, and Windows systems. You can choose between JDK 20, which is the latest release of Java SE Platform, and JDK 17 LTS, which is the latest long-term support release for the Java SE platform .
You can download an early access build of the upcoming JDK release from https://jdk.java.net/. These builds are updated frequently and may contain experimental features and bug fixes. They are intended for testing purposes only and not for production use.
You can build your own JDK from source code by following the instructions at https://openjdk.java.net/groups/build/. This way, you can customize your JDK and apply your own patches. However, this requires more time and effort than downloading a pre-built binary.
After you download or build a JDK, you need to install it on your system and set up some environment variables. The exact steps may vary depending on your platform and package type, but generally you need to do the following:
Extract or run the downloaded or built package to a location of your choice.
Set the JAVA_HOME environment variable to point to the directory where you installed the JDK.
Add the bin subdirectory of the JAVA_HOME directory to your PATH environment variable.
Verify that you have installed the JDK correctly by running java -version and javac -version commands in a terminal or command prompt. You should see something like this:
$ java -version
java version \"20.0.1\" 2022-01-18
Java(TM) SE Runtime Environment (build 20.0.1+11)
Java HotSpot(TM) 64-Bit Server VM (build 20.0.1+11, mixed mode)
$ javac -version
How to Use Visual Studio Code for Java Development?
Visual Studio Code (VS Code) is a popular code editor that supports many languages and features. It also has extensions that enhance its functionality and usability for Java development . To use VS Code for Java development, you need to do the following:
Download and install VS Code from https://code.visualstudio.com/.
Install the Extension Pack for Java from https://marketplace.visualstudio.com/items?itemName=vscjava.vscode-java-pack. This will install several extensions that provide features such as syntax highlighting, code completion, debugging, testing, refactoring, and more for Java development.
Open a folder or workspace that contains your Java source files or create a new one using VS Code's commands or menus.