How to specify the JDK version in Android Studio?

java

gradle

jdk-configuration

android-studio

byNikita Barsukov·Nov 27, 2024

It's simple to specify the JDK version in Android Studio. Just add these lines in your build.gradle file:

android {
    compileOptions {
        // Notice how Java and Groovy have bonded over a cup of coffee
        sourceCompatibility JavaVersion.VERSION_1_8
        targetCompatibility JavaVersion.VERSION_1_8
    }
}

Don't forget to sync your project for the changes to take effect. Now, you're brewing with JDK 1.8!

Configuring JDK to obtain the "Code of Perfection"

From keyboard to the world of settings

Launch the settings/preferences window swiftly with:

Ctrl + Alt + S on Windows/Linux
Cmd + , on macOS

Type "Gradle" in the search and proceed on your path to ensure your Gradle build's success.

Matching your shoe size—or rather, your JDK version

Choose the right JDK version, be it 1.7, 1.8, or 11. This decision should support the stability of your code, its libraries, and those friendly third-party plugins you're using.

JDK path discovery: No compass required

Use this shell command:

/usr/libexec/java_home -v <version>

Replace <version> with your chosen version number. The output is your JDK location—be sure it matches the path in your Gradle settings.

Dancing with different Android Studio versions

Different versions of Android Studio have their unique steps. In Arctic Fox (2020.3.1) or newer, you play by navigating to File > Settings. If you dance with 4.2 or an older version, you step to the beat of File > Project Structure. After changing your partner (or JDK settings), do a quick restart of Android Studio.

System PATH—the river that drives the mill

Include the correct JDK path in your system PATH. It enables Gradle and other command-line tools to find your Java executables. If you still encounter issues, check your environment variables—they might have a say in this discussion!

Keeping up with the Joneses's compatibility

Ensure a congenial match between your Android SDK and JDK version. You can verify your installed JDK version with this command-line query:

java -version

OpenJDK—The Unconventional Hero

Keep an eye on which version of OpenJDK your project harnesses. While Android Studio comes pre-bundled with an OpenJDK distribution, some build requirements might point you towards a different version or vendor.

Troubleshooting—The Drawbridge to Solutions

If you face any configuration issues, cross-verify your Gradle settings and terminal's JDK information. Still no relief? Consider reinstalling the JDK—it might be more rejuvenating than a strong espresso!

explain-codes / Java / How to specify the JDK version in Android Studio?

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