Installing Oracle Java on CentOS 7 can be done by manually downloading the Java package from the Oracle website and then configuring it on your system. Here is an example of the steps to install Oracle Java on a CentOS 7 system:
Download the Oracle Java SE JDK package from the Oracle website (you will need to create an account if you don't have one)
Move the downloaded package to the /opt directory
sudo mv jdk-8uXXX-linux-x64.tar.gz /opt/
- Extract the package
sudo tar xzf jdk-8uXXX-linux-x64.tar.gz -C /opt/
- Create a symbolic link to make it easier to switch between different Java versions
sudo ln -s /opt/jdk1.8.0_XXX /opt/jdk
- add the following lines to the end of the file /etc/profile
export JAVA_HOME=/opt/jdk
export PATH=$PATH:$JAVA_HOME/bin
- To make the changes take effect immediately, you can run the following command:
source /etc/profile
- Verify that the JAVA_HOME variable is set by running the following command:
echo $JAVA_HOME
- Verify the java version installed by running the following command:
java -version
This is a basic example of how to install Oracle Java on a CentOS 7 system. You can also customize and optimize the configuration according to your specific needs and requirements. Keep in mind that Oracle JDK is not Open-source, you need to accept the terms and condition before installing it and keep it up to date.