Web Reference: Dec 12, 2025 · Although Java comes preinstalled on most Raspberry Pi systems, some may have it missing or require reinstalling. This guide will show how to install Java, set the default version, and specify the JAVA_HOME path on a Raspberry Pi. May 9, 2020 · Java is already installed by default on Raspberry Pi OS Full, so there is nothing to do. To install Java on another version (Desktop or Lite), the package “default-jre” has to be installed with apt or the “Add / Remove software” tool. Jan 16, 2026 · In this guide, we’ll walk you through step-by-step instructions to install Java on Raspberry Pi. We’ll cover both OpenJDK (the free, open-source Java implementation) and Oracle JDK (the official Oracle distribution), along with how to manage multiple Java versions and troubleshoot common issues.
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