intellij change java version

jetbrains.com › help › idea › switching-boot-jdk.html

Change the boot Java runtime of the IDE | IntelliJ IDEA Documentation

February 17, 2025 - Define an SDK for each of your projects, which includes the necessary development and runtime environment. In the main menu, go to Help | Find Action… or press Ctrl+Shift+A. Find and select the Choose Boot Java Runtime for the IDE…

Stack Overflow

stackoverflow.com › questions › 74413002 › how-to-change-java-version-in-intellij

How to change java version in Intellij? - Stack Overflow

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Changing the JDK in IntelliJ UI does not affect its Intellij terminal:

When changing the JDK, we need to remember that this only affects the JDK used by IntelliJ. Therefore, when running the Java project via the command line, it'll still use the JDK specified in the JAVA_HOME environment variable

So when running java on Intellij terminal, you still have to set JAVA_HOME to change java version

Discussions

Set up IntelliJ to target Java 25 or newer so it uses IO. instead of the old-school System.out. and System.in. — gotta keep things modern and efficient.

It works fine for me, make sure you set your language level Project Settings > SDK / Language Level (25) It's pretty nice, now I can just type IO.println("Hello, World!"); More on reddit.com

r/learnprogramming

October 2, 2025

How do I auto update java version and plugins?

I am not sure if there is an option for that. But i am pretty sure that You don't want to. That's how you break your project without knowing why. More on reddit.com

r/IntelliJIDEA

August 25, 2025

Tell intellij which java version to use for JUnit testing

Hi, we have a project that needs Java 8 to run. Now we have Java 16 around, so when importing Intellij uses Java 16 by default. I tried to convince Intellij to use java 8 for test execution with that: java { … More on discuss.gradle.org

discuss.gradle.org

August 16, 2022

Maybe TIL in intellij, how to configure jvm version in different project

Check out Sdkman with a .sdkmanrc that IJ generally reads and accepts More on reddit.com

r/scala

June 22, 2024

Videos

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How to change Java (JDK) versions inside IntelliJ - YouTube

February 3, 2022

01:35

How to Change the Java JDK Version of IntelliJ IDEA - YouTube

December 20, 2021

02:54

How to Change Java Versions in IntelliJ - YouTube

September 9, 2024

00:34

Intellij Tips and Tricks: Changing the Java version #computerscience ...

March 25, 2024

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Baeldung

baeldung.com › home › ide › how to change the java version in an intellij project

How to Change the Java Version in an IntelliJ Project | Baeldung

June 20, 2025 - A quick and practical overview of how to change the Java version in an IntelliJ project.

Medium

stephencowchau.medium.com › multiple-configuration-of-java-jdk-and-jre-version-in-the-project-that-might-not-align-3dfc771abc91

IntelliJ — multiple configurations of Java JDK and JRE version in the project that might not align | by Stephen Cow Chau | Medium

October 13, 2021 - Even the application properties stated the java version, IntelliJ seems to have some other configuration so that the build (JDK related, I suppose) or the run (JRE related, I suppose) are not using that specified version. ... Setting the SDK version, also setting the Project language support to be the same, I choose to use SDK default for Project language level, and in future if I need to change ...

intellij-support.jetbrains.com › hc › en-us › community › posts › 14515375889170-How-to-Switch-Java-Versions-on-MacOS

How to Switch Java Versions on MacOS – IDEs Support (IntelliJ Platform) | JetBrains

October 18, 2023 - Some information on how to change the Java version in IntelliJ (might be useful for other users finding this post): - Set up the project JDK: https://www.jetbrains.com/help/idea/sdk.html#set-up-jdk - Set java compiler version: https://www.jetbrains.com/help/idea/java-compiler.html#compiler - Set java version for Maven runner: https://www.jetbrains.com/help/idea/maven-support.html#maven_runner_jdk - Set java version for Gradle: https://www.jetbrains.com/help/idea/gradle-jvm-selection.html

reddit.com › r/learnprogramming › set up intellij to target java 25 or newer so it uses io. instead of the old-school system.out. and system.in. — gotta keep things modern and efficient.

r/learnprogramming on Reddit: Set up IntelliJ to target Java 25 or newer so it uses IO. instead of the old-school System.out. and System.in. — gotta keep things modern and efficient.

October 2, 2025 -

Java 25 just introduced this slick new IO class for way simpler console access — with print, println, and readln built right in. But in my Java 25 projects, IntelliJ IDEA 2025.3 EAP keeps pushing me to use the old System.out and System.in.

Is there a way to get IntelliJ to stop being stuck in the past and start generating code with IO instead?

It works fine for me, make sure you set your language level Project Settings > SDK / Language Level (25) It's pretty nice, now I can just type IO.println("Hello, World!");

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You have to set Java to be 25 in your terminal level (java --version), in File -> Project Structure -> Project Settings -> Project, and in the same window in Platform Settings -> SDKs. If you are using Gradle then check that Settings -> Build, Execution, Deployment -> Gradle has it set to 25 in Gradle JVM.

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jetbrains.com › help › idea › sdk.html

SDKs | IntelliJ IDEA Documentation

If the necessary JDK is already defined in IntelliJ IDEA, select it from the SDK list. If the JDK is installed on your computer but not defined in the IDE, select Add SDK from disk and specify the path to the JDK home directory (for example, /Library/Java/JavaVirtualMachines/jdk-12.0.1.jdk). If you don't have the necessary JDK on your computer, select Download JDK. In the next dialog, specify the JDK vendor, version, change the installation path if required, and click Download.

blog.jetbrains.com › home › intellij idea › java 25 lts and intellij idea

Java 25 LTS and IntelliJ IDEA - The JetBrains Blog

September 26, 2025 - You can do so from inside IntelliJ IDEA or by using tools like SDKMAN! To download a JDK from IntelliJ IDEA, open the Project Structure, go to the tab Project Settings | Project, open the drop-down menu in the SDK field, and select Download JDK.

reddit.com › r/intellijidea › how do i auto update java version and plugins?

r/IntelliJIDEA on Reddit: How do I auto update java version and plugins?

August 25, 2025 -

How to update these and also plugins automatically on launch?

I am not sure if there is an option for that. But i am pretty sure that You don't want to. That's how you break your project without knowing why.

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To have IntelliJ update your plugins automatically, go to Settings | Appearance & Behavior | System Settings | Updates and enable the Update plugins automatically option. There isn’t currently a built-in way for IntelliJ IDEA to automatically update the JDK itself. If you’d like to see automatic JDK updates added, you can file a feature request here: https://youtrack.jetbrains.com/newissue?project=IJPL .

Quora

quora.com › How-do-I-switch-between-different-versions-of-Java-in-IntelliJ-IDEA

How to switch between different versions of Java in IntelliJ IDEA - Quora

Answer: How to switch between different versions of Java in IntelliJ IDEA 1. Step 1: Installing Multiple Java Versions. Installing multiple Java versions in parallel is incredibly easy in Windows. ... 2. Step 2: Define Java Environment Variables. ... 3. Step 3: Install the Scripts to Change the ...

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intellij-support.jetbrains.com › hc › en-us › community › posts › 11611871000722-How-to-find-Java-version-of-project

How to find Java version of project – IDEs Support (IntelliJ Platform) | JetBrains

May 22, 2023 - AFAIK its different from the project sdk set in project structure, i.e, I can still clone and open a project written in java 7 and set the project sdk to java 17 - but my plugin won't work in this case. So, any suggestion on how can I check java version used in a project from a plugin?

intellij-support.jetbrains.com › hc › en-us › community › posts › 360007003800-How-to-specify-jdk-version-in-gradle

How to specify jdk version in gradle? – IDEs Support (IntelliJ Platform) | JetBrains

January 23, 2020 - if i m using maven in idea. just setting up "maven-compiler-plugin". and idea will using the plugin using jdk version. but, gradle, how to do it? ... Looks like an issue with the Gradle Kotlin build files. Please vote anf follow this issue for progress: https://youtrack.jetbrains.com/issue/KT-36130 · Note that the target JVM verison is still set correctly to 1.8 in Project Structure | Modules | Sources | Language level and Settings (Preferences on macOS) | Build, Execution, Deployment | Compiler | Java Compiler.

Android Developers

developer.android.com › android studio › android studio quail 1

Android Studio Quail 1 | Android Developers

1 week ago - 13.1 Google may make changes to the License Agreement as it distributes new versions of the SDK.

Gradle

discuss.gradle.org › help/discuss

Tell intellij which java version to use for JUnit testing - Help/Discuss - Gradle Forums

August 16, 2022 - Hi, we have a project that needs Java 8 to run. Now we have Java 16 around, so when importing Intellij uses Java 16 by default. I tried to convince Intellij to use java 8 for test execution with that: java { toolchain { languageVersion = JavaLanguageVersion.of(8) } } That works fine when using run “via Gradle”: However when using Run “via Intellij IDEA”, Intellij still uses Java 16: Is this a bug in intellij or is there some other way to steer the sel...

jetbrains.com › help › idea › update.html

Update IntelliJ IDEA | IntelliJ IDEA Documentation

You can choose to update the current ... To manage the IntelliJ IDEA update policy, open Settings Ctrl+Alt+S and select Appearance & Behavior | System Settings | Updates....

jetbrains.com › help › idea › supported-java-versions.html

Supported Java versions and features | IntelliJ IDEA Documentation

This page lists all Java versions and preview features supported by IntelliJ IDEA for developing applications. For more information about Java releases and features in each release, refer to Java version history. If you need to run IntelliJ IDEA using another Java runtime, refer to Change the boot ...

reddit.com › r/scala › maybe til in intellij, how to configure jvm version in different project

r/scala on Reddit: Maybe TIL in intellij, how to configure jvm version in different project

June 22, 2024 -

Maybe Today I Learn in intellij how to change the jvm by project. Indeed this Ox project I wanted to try seems to need jvm 21 so I needed to switch and it generate some kind of instability in my "workflow".

When configuring the jvm in File > Project Structure > Project > SDK and the other emplacement for it are all in "default mode" (e.g : Setting > Build, Execution, Deployment > Compiler > Scala Compiler > Scala Compile Server > JDK, setting > Build, Execution, Deployment>build tools> sbt) it will be save in the .idea folder so the switch between project is now becoming easier

EDIT : the coursera course on this subject : https://www.coursera.org/projects/configure-scala-intellij