Install Java 8 Package in CentOS 6/7



Download Java for 64bit

Download Java for 32bit

Extract java gz file and install
# tar -zvxf jdk-8u131-linux-x64.tar.gz# cd /root/jdk1.8.0_131/
# alternatives --install /usr/bin/java java /opt/jdk1.8.0_131/bin/java 2
# alternatives --config java

There are 2 programs which provide 'java'.

  Selection    Command
-----------------------------------------------
*+ 1           /root/jdk1.8.0_131/bin/java
   2           /opt/jdk1.8.0_131/bin/java

Enter to keep the current selection[+], or type selection number: 2

# alternatives --install /usr/bin/jar jar /opt/jdk1.8.0_131/bin/jar 2
# alternatives --install /usr/bin/javac javac /opt/jdk1.8.0_131/bin/javac 2
# alternatives --set jar /opt/jdk1.8.0_131/bin/jar
# alternatives --set javac /opt/jdk1.8.0_131/bin/javac

Check installed version
# java -version
java version "1.8.0_131"
Java(TM) SE Runtime Environment (build 1.8.0_131-b11)
Java HotSpot(TM) 64-Bit Server VM (build 25.131-b11, mixed mode)

Set environment variables
# export JAVA_HOME=/opt/jdk1.8.0_131
# export JRE_HOME=/opt/jdk1.8.0_131
# export PATH=$PATH:/opt/jdk1.8.0_131/bin:/opt/jdk1.8.0_131/jre/bin