close
close
Shinanala
Home

yum install java

2 min read 02-10-2024
yum install java

Installing Java on CentOS/RHEL using yum

Many applications require Java to run, making it a vital part of many Linux systems. CentOS/RHEL, popular operating systems used in server environments, offer an easy way to install Java using the yum package manager.

Here's how to install Java on CentOS/RHEL using yum:

1. Install the Java Development Kit (JDK)

The JDK is a complete development environment containing tools for compiling and running Java programs.

Original Code:

sudo yum install java-11-openjdk-devel

This command installs the OpenJDK 11 JDK.

Explanation:

  • sudo allows you to run the command with root privileges, which is necessary to install packages.
  • yum is the package manager used in CentOS/RHEL.
  • install is the command to install packages.
  • java-11-openjdk-devel is the package name for OpenJDK 11 JDK, including development tools.

You can replace java-11-openjdk-devel with different versions of OpenJDK, like java-8-openjdk-devel or java-17-openjdk-devel.

2. Verify the Installation

After the installation, you can verify if Java is installed correctly by running:

java -version

This should print the Java version you just installed.

3. Set Java Environment Variables

For applications to find and use the installed Java, you need to set environment variables. This can be done by editing the /etc/profile file.

Original Code:

sudo nano /etc/profile

Add the following lines at the end of the file:

export JAVA_HOME=/usr/lib/jvm/java-11-openjdk-11.0.17.0.8-1.el8_6.x86_64/
export PATH=$PATH:$JAVA_HOME/bin

Explanation:

  • export JAVA_HOME defines the directory where Java is installed.
  • export PATH adds the Java binaries directory to your system's path, allowing you to execute Java commands from any directory.

4. Apply Changes

Finally, you need to apply the changes you made to the /etc/profile file:

source /etc/profile

Additional Information:

  • You can find a list of available Java packages by running yum search java.
  • If you need a specific Java version, you can find it on the Oracle website or OpenJDK website.
  • Oracle Java requires a license agreement, while OpenJDK is free and open-source.

By following these steps, you can successfully install and set up Java on your CentOS/RHEL system for your desired applications.

Latest Posts

Popular Posts