Installation

VS Code (Recommended)

First make sure you have the Java Extension Pack installed. You can find it in the Extensions view by searching for redhat.java.

Then you need to download the Scratch for Java jar for your operating system.

Afterward, you need to add the jar to your project. You can do this by adding the following to your settings.json:

"java.project.referencedLibraries": [
    "path/to/scratch4j.jar"
]

If you want to be compatible with BlueJ you should use a "+libs" folder in your project, add the jar there and then add the following to your settings.json:

"java.project.referencedLibraries": [
    "+libs/*.jar"
]

BlueJ

You can install this library via three ways in BlueJ.

First, you need to download the Scratch for Java jar for your operating system.

Project-by-project

Create a directory called "+libs" inside your project. Copy the Scratch for Java jar into the "+libs" folder. Restart BlueJ - done. Scratch for Java will now be available for this project.

Open the "Preferences" dialogue and select the "Libraries" tab. Then add the location where the Scratch for Java jar is located. Restart BlueJ - done. Scratch for Java will now be available in all of your projects that you open.

System Wide

You need to locate the "userlib" folder, found at <bluej-dir>/lib/userlib. Place the Scratch for Java jar into this folder. Restart BlueJ - done. Scratch for Java will now be available in all projects for all users.

If you have installed BlueJ via the installer you probably find the "userlib" folder here:

Windows: C:\Program Files\BlueJ\lib\userlib
MacOS: /Application/BlueJ/BlueJ.app/Resources/java/userlib
Linux: /usr/share/bluej/userlib/

Standalone

You need to add the Jar file for your operating system to the classpath.

Downloads

⏬Windows - Intel 64-bit ⏬Linux - Intel 64-bit ⏬Linux - ARM v6hf ⏬Linux - ARM 64-bit ⏬MacOS