Скачать или смотреть How to Set Up Sublime Text 3 to Run a Specific Java Version

Learn how to configure Sublime Text 3 to run a specific `Java version` alongside other Java versions installed on your system, ensuring compatibility with older projects.
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How to Set Up Sublime Text 3 to Run a Specific Java Version

Managing multiple versions of Java on your system can be quite a challenge, especially when you need to maintain projects that rely on older Java versions. For instance, you might have both Java 11 and Java 7 installed, with some integrated development environments (IDEs) dropping support for older versions. If you're a Sublime Text 3 user grappling with this inconsistency, you've come to the right place! In this guide, I will walk you through setting up Sublime Text 3 to specifically run Java 7 without changing the default Java version on your system.

Why Use Multiple Java Versions?

When maintaining legacy systems or websites built on specific Java versions, it's essential to have the right tools for the job. Multiple Java installations allow developers to:

Work on different projects that may require different versions of Java.

Test and run code designed for older versions without disrupting the environment of newer applications.

Step-by-Step Instructions

Here's how to configure Sublime Text 3 to ensure it executes Java 7 seamlessly.

Step 1: Create a New Build System

Open Sublime Text 3.

Navigate to the top menu: Tools Build System New Build System...

Step 2: Paste the Build Configuration

In the new build system file that opens up, you'll need to insert the following JSON configuration:

[[See Video to Reveal this Text or Code Snippet]]

Explanation of the Configuration:

cmd: This defines the commands to compile (javac) and run (java) your Java files.

selector: This specifies the source type for syntax highlighting.

file_regex: This helps in displaying error messages with the correct file and line number.

path: This is where you need to set your path based on where Java 7 is installed. Adjust the path as per your version and installation location.

Step 3: Save Your Build System

Save the file with a .sublime-build extension. For ease of reference, you could name it Java7 Run.sublime-build.

After saving, your new build system will appear in the build system list.

Step 4: Selecting Your Build System

Go back to the Tools Build System menu.

Select Java7 Run (or the name you chose).

Now, whenever you build your Java files in Sublime Text, it will utilize Java 7, as per the configuration you have set.

Step 5: Validate Your Setup

To ensure that your setup is working correctly, you can use this line of code in your Java program to print the currently running Java version:

[[See Video to Reveal this Text or Code Snippet]]

When you run this code, it should output 1.7.x (or the appropriate version number) confirming that your Sublime Text 3 is indeed using Java 7.

Conclusion

By following these steps, you can easily switch between Java versions in Sublime Text 3, allowing you to work effectively on both modern and legacy projects. This setup not only enhances your productivity but also ensures that you are always using the right tools for the job.

Feel free to share this guide with fellow developers who may benefit from a seamless Java development experience in Sublime Text 3!