Installing Java 8 on Ubuntu
Quick notes about installing Java 8 on Ubuntu 12.4 LTS. Option 2 is almost same for RHEL 7.1.
Option 1:
sudo add-apt-repository ppa:webupd8team/java
sudo apt-get update
sudo apt-get install oracle-java8-installer
This unfortunately did not install the latest from Java for me so I moved to option 2 in may case but if it works for you, it is very easy to use that package and update.
Option 2: Manually
Download package from Oracle-Java site and extract it with tar. Then;
sudo mv jdk1.8.0_72 /usr/lib/jvm/
sudo update-alternatives –install "/usr/bin/java" "java" "/usr/lib/jvm/jdk1.8.0_72/jre/bin/java" 1
sudo update-alternatives –set java /usr/lib/jvm/jdk1.8.0_72/jre/bin/java
Firefox:
sudo update-alternatives –install /usr/lib/mozilla/plugins/mozilla-javaplugin.so mozilla-javaplugin.so /usr/lib/jvm/jdk1.8.0_72/jre/lib/amd64/libnpjp2.so 1
sudo update-alternatives –config mozilla-javaplugin.so
And if needed;
sudo update-alternatives –install "/usr/bin/javac" "javac" "/usr/lib/jvm/jdk1.8.0_72/bin/javac" 1
sudo update-alternatives –install "/usr/bin/javaws" "javaws" "/usr/lib/jvm/jdk1.8.0_72/jre/bin/javaws" 1
To choose versions;
sudo update-alternatives –config java
sudo update-alternatives –config javac
sudo update-alternatives –config javaws
Good luck.
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