Text blocks are scheduled to become a permanent feature of the Java Language in Java SE 15. In this article Brian Goetz, Java Language Architect at Oracle, provides a deep-dive into the topic.

Step 1: Install the JDK If you want to play around with a Java preview feature, you'll first need a Java Development Kit. Here's how to install JDK 13 on Ubuntu and set the all-important JAVA_HOME ...

Once rolled out, paste/write your code and then Insert > Building blocks, which will offer a new “Code block” menu. The five available options are C/C++, Java, JavaScript, Python, and Unset.