Install Java Yum ✯ «Latest»

java -version If not installed, you’ll see command not found . List all Java-related packages:

openjdk version "11.0.22" 2024-01-16 LTS OpenJDK Runtime Environment (Red Hat build 11.0.22+7-LTS) OpenJDK 64-Bit Server VM (Red Hat build 11.0.22+7-LTS, mixed mode, sharing) Check compiler (if JDK installed):

sudo yum update -y : On RHEL 8+ and derivatives, yum is symlinked to dnf . Both commands work interchangeably. 3.2. Check Existing Java Installations Verify if Java is already present: install java yum

sudo yum list installed | grep openjdk Remove a specific package:

sudo yum list available | grep -i java Option A: Install Headless JRE (Minimal runtime, no GUI) sudo yum install java-11-openjdk-headless Option B: Install Full JRE (Includes sound, graphics support) sudo yum install java-11-openjdk Option C: Install JDK (For development) sudo yum install java-11-openjdk-devel Option D: Install a Different Java Version Replace 11 with another version, e.g., 8 , 17 , 21 : java -version If not installed, you’ll see command

sudo yum localinstall jdk-11.0.22_linux-x64_bin.rpm | Issue | Solution | |--------|----------| | No package available | Enable EPEL repo: sudo yum install epel-release | | Unable to find a match | Ensure repository metadata is updated: sudo yum clean all && sudo yum update | | Multiple versions conflict | Use sudo alternatives --config java to resolve | | java: command not found after install | Logout & login, or check /usr/bin/java symlink | 10. Conclusion Installing Java via yum is straightforward, offering flexibility to choose between JRE, JDK, and various versions. The alternatives system simplifies managing multiple installations. Always verify with java -version and set JAVA_HOME for production environments. Need a specific Java version or distribution? Adjust the package names accordingly (e.g., java-1.8.0-openjdk for Java 8). For containers or minimal environments, the -headless variant saves space.

echo "export JAVA_HOME=/usr/lib/jvm/$(ls /usr/lib/jvm | grep -m 1 'java-11-openjdk')" >> ~/.bashrc echo "export PATH=\$JAVA_HOME/bin:\$PATH" >> ~/.bashrc source ~/.bashrc Verify: Adjust the package names accordingly (e.g.

sudo yum remove java-11-openjdk-headless Or remove all OpenJDK packages: