Java Academy · Lesson

Installing JDK & IDE

Install the JDK, set JAVA_HOME and PATH, verify versions, and configure an IDE.

What to Install

What you will install

JDK: Java Development Kit (compiler javac and tools).
IDE: an editor to write and run code comfortably (IntelliJ or VS Code).
Command line: verify versions and run simple commands.

After this lesson you will be ready to write and run Java on your machine.

Pick a JDK

Choose a JDK distribution

Common choices include OpenJDK builds (e.g., Temurin) or Oracle JDK.
Pick a stable LTS version (e.g., 17 or later).
Download the installer for your OS (Windows, macOS, Linux).

All provide the same Java language; differences are mostly licensing and packaging.

All lessons in this course

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