CODEWITHSUNDEEP
javaubuntuubuntu-18.04
gorros
gorros

Reputation: 1461

How to install Oracle Java 8 on Ubuntu 18.04?

Previously, there was an easy way to install Java 8 on Ubuntu using webupd8team repository. But currently it does not work and packages are not located.

Upvotes: 1

Views: 2001

Answers (2)

gorros
gorros

Reputation: 1461

So after spending a lot of effort on such a common case I decided to add this post. I used several resources to achieve it.

  1. Uninstall openjdk sudo apt-get purge openjdk*
  2. Go to this blog post and run all steps until 4. If you have issues on step #3 go to step 3 in this post (sorry for numbering :))
sudo mkdir /usr/lib/jvm-oracle

sudo cp ~/Downloads/(name of your tarball) /usr/lib/jvm-oracle 

cd /usr/lib/jvm-oracle

sudo tar -xvzf (name of tarball)

cd jdk1.8.0_(corresponding version)

sudo update-alternatives --install /usr/bin/java java /usr/lib/jvm-oracle/jdk1.8.0_{version}/bin/java 1
sudo update-alternatives --install /usr/bin/javac javac /usr/lib/jvm-oracle/jdk1.8.0_{version}/bin/javac 1
sudo update-alternatives --install /usr/bin/javaws javaws /usr/lib/jvm-oracle/jdk1.8.0_{version}/bin/javaws 1

sudo cat > /etc/profile.d/jdk.sh
export JAVA_HOME="/usr/lib/jvm-oracle/jdk1.8.0_221"
export PATH="$PATH:${JAVA_HOME}/bin"
Ctrl+d
  1. (Optional) Make sure java alternatives are updated sudo update-alternatives --config java

Update

You can download Java from here

Upvotes: 2

Pronoy999
Pronoy999

Reputation: 660

Download the JDK 8 SDK.

Create a directory at /usr/lib called jvm-oracle. You will need to use the sudo command as this directory is at root level:

sudo mkdir /usr/lib/jvm-oracle

Copy your tarball over:

sudo cp ~/Downloads/(name of your tarball) /usr/lib/jvm-oracle

Move into the /usr/lib/jvm-oracle and extract your tarball: Move into: cd /usr/lib/jvm-oracle Extract: sudo tar -xvzf (name of tarball)

List out the directory contents and find your extracted folder: ls -al

You should see a directory like ‘jdk1.8.0_172’. Move into your dir and the bin folder with cd and list out the contents. Move to new dir: cd jdk1.8.0_172. Move to bin: cd bin List out Contents: ls -al

Run these following commands: 

sudo update-alternatives --install /usr/bin/java java /usr/lib/jvm-oracle/jdk1.8.0_172/bin/java 1
sudo update-alternatives --install /usr/bin/javac javac /usr/lib/jvm-oracle/jdk1.8.0_172/bin/javac 1
sudo update-alternatives --install /usr/bin/javaws javaws /usr/lib/jvm-oracle/jdk1.8.0_172/bin/javaws 1

Then add the JAVA_HOME by these command: 

echo $'\nJAVA_HOME='`which java` >> ~/.bashrc

Alternatively, you can add it manually by opening your .bashrc file and setting 

JAVA_HOME=/usr/bin/java

Upvotes: 1

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