CentOS 6.5 Installation jdk1.8

CentOS 6.5 Installation jdk1.8
1, source Package preparation:


First to the official website download jdk-8u66-linux-x64.tar.gz,


Http://www.oracle.com/technetwork/java/javase/downloads/jdk8-downloads-2133151.html


2, Upload
Upload to/data directory.


3, decompression
Tar zxvf jdk-8u66-linux-x64.tar.gz


4. Set JDK environment variables
Vi/etc/profile
After opening, add at the end:
Java_home=/data/jdk1.8.0_66
Jre_home=/data/jdk1.8.0_66/jre
Classpath=.: $JAVA _home/lib/dt.jar: $JAVA _home/lib/tools.jar: $JRE _home/lib
Path= $JAVA _home/bin: $PATH
Export PATH java_home CLASSPATH


5. Make environment variable effective
Source/etc/profile


6, to see if their configuration is correct


Echo $JAVA _home
Echo $CLASSPATH
Echo $PATH


7, modify the default JDK
Update-alternatives--install/usr/bin/java Java/data/jdk1.8.0_66/bin/java 300
Update-alternatives--install/usr/bin/javac Javac/data/jdk1.8.0_66/bin/javac 300
Update-alternatives--config Java
Update-alternatives--config Javac


8. Verify that the installation is successful


In the terminal
Java-version
See if the installation is successful and the success is shown below


Java Version "1.8.0_66"
Java (TM) SE Runtime Environment (build 1.8.0_66-b17)
Java HotSpot (TM) 64-bit Server VM (build 25.65-b01, Mixed mode)