How To Install Java JDK and JRE on Oracle Linux Server 9
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How To Install Java JDK and JRE on Oracle Linux Server 9
Java is a high-level, class-based, object-oriented programming language that is designed to have as few implementation dependencies as possible.
OpenJDK or Oracle Java
OpenJDK is an open-source implementation of the Oracle Java SE platform edition. Oracle develops Oracle Java SE, whereas the OpenJDK is developed by Oracle Corporation, OpenJDK and Java Community, Red Hat, Azul Systems, IBM, Apple Inc, and SAP SE.
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Server - Os: Oracle Linux Server 9 64Bit | IP -192.168.1.50 |Hostname - server.testbox.com
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cat /etc/system-release ; dnf groupinstall "Development Tools" -y
Method - 1
dnf update
sudo dnf install java-11-openjdk java-11-openjdk-devel
java -version
Method - 2
Install Java OpenJDK 16 Manually from TAR.GZ File-
wget https://download.java.net/java/GA/jdk16.0.2/d4a915d82b4c4fbb9bde534da945d746/7/GPL/openjdk-16.0.2_linux-x64_bin.tar.gz
tar -xf openjdk-16.0.2_linux-x64_bin.tar.gz
mkdir -p /usr/lib/jvm ; mv jdk-16.0.2 /usr/lib/jvm
alternatives --install "/usr/bin/java" "java" "/usr/lib/jvm/jdk-16.0.2/bin/java" 0
alternatives --install "/usr/bin/javac" "javac" "/usr/lib/jvm/jdk-16.0.2/bin/javac" 0
alternatives --list
sudo alternatives --config java
sudo alternatives --config javac
java --version ; javac --version
Setup JAVA_HOME Environment Variable-
cd /etc/profile.d/ ; nano java.sh
JAVA_HOME="/usr/lib/jvm/jdk-16.0.2"
source /etc/profile.d/java.sh
echo $JAVA_HOME
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Test Java Installation-
nano HelloWorld.java
public class helloworld {
public static void main(String[] args) {
System.out.println("Hello Java World from india!");
}
}
java HelloWorld.java
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