Install Scoop#

Open PowerShell and run:

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# Allow local script execution
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Set-ExecutionPolicy RemoteSigned -Scope CurrentUser
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# Install Scoop
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iwr -useb get.scoop.sh | iex
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# Verify installation
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scoop help

Install Multiple JDK Versions#

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scoop bucket add java

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scoop search jdk

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# Install OpenJDK 8
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scoop install openjdk8-redhat
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# Install OpenJDK 21
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scoop install openjdk21

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# Switch to JDK 8
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scoop reset openjdk8-redhat
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# Switch to JDK 21
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scoop reset openjdk21
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# Switch to GraalVM 21
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scoop reset graalvm21-jdk21

How It Works#

scoop reset updates the user’s JAVA_HOME and PATH environment variables to point to the selected JDK directory. Changes take effect immediately in new terminal windows — no restart needed.

Similarly, Python, Ruby, Node.js, and other runtimes can be managed with Scoop for effortless version switching.