Intro

Fedora comes with Java, but it’s OpenJDK. Sometimes, you just need Oracle’s version.

Download

Head to the official site to download: Java Downloads | Oracle (Requires login to download)

Find java8-Linux, then grab the x64 Compressed Archive (that’s the 64-bit compressed package).

As of writing, the file was named jdk-8u341-linux-x64.tar.gz.

Move to Directory

1. First, create a Java directory under /usr/local.

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sudo mkdir -p /usr/local/java

2. Copy the file there.

Assuming your download is in ~/Downloads, navigate to it.

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cd Downloads

Then copy it to the directory we just made.

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sudo cp -r jdk-8u341-linux-x64.tar.gz /usr/local/java

Extract the Archive

3. Switch to the Java directory.

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cd /usr/local/java

4. Extract the installation file.

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sudo tar xvzf jdk-8u341-linux-x64.tar.gz

Configure $PATH

5. Add these lines to the end of /etc/profile.

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JAVA_HOME=/usr/local/java/jdk1.8.0_341
PATH=$PATH:$HOME/bin:$JAVA_HOME/bin
export JAVA_HOME
export PATH

Update Available Java Versions

6. Run these commands directly.

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sudo update-alternatives --install "/usr/bin/java" "java" "/usr/local/java/jdk1.8.0_341/bin/java" 1

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sudo update-alternatives --install "/usr/bin/javac" "javac" "/usr/local/java/jdk1.8.0_341/bin/javac" 1

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sudo update-alternatives --install "/usr/bin/javaws.itweb" "javaws.itweb" "/usr/local/java/jdk1.8.0_341/bin/javaws.itweb" 1

Apply Configuration

7. First, reload the system-wide PATH file.

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source /etc/profile

8. Reboot your system.

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reboot

Switch Java Version

You can check the current Java version by running:

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java -version

9. Use the following command to switch:

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sudo alternatives --config java

The currently active Java version will have a + next to it. Find your desired version and type its number to select.

References

How to Install Java on Fedora {OpenJDK and Oracle JDK}