"Linux" Installation configuration JDK1.8

The first step: download the Linux environment jdk1.8, please go to the (official website) to download the JDK installation files;

To view the Linux operating system number of bits:

[Email protected] ~]# getconf long_bit

Since my Linux is 64-bit, I downloaded the jdk-8u151-linux-x64.tar.gz

As shown in the following:

　　　　

Step Two: create a new /usr/java folder, place the jdk-8u151-linux-x64.tar.gz in the folder, and switch the working directory to /usr/java Directory. As shown in the following:

　　　　

Step Three: Configure environment variables:

Using vim/etc/profile to edit the profile, add the following at the bottom of the /etc/profile :

[Email protected] ~]# Vim/etc/profile

　　java_home=/usr/java/jdk1.8.0_151

Path= $JAVA _home/bin: $PATH

Classpath= $JAVA _home/jre/lib/ext: $JAVA _home/lib/tools.jar

Export PATH java_home CLASSPATH

　　　　

Fourth Step: use source/etc/profile to make the profile effective immediately

　　[Email protected] ~]# Source/etc/profile

Fifth Step: command test

　　①, command not found error is not present with JAVAC commands

②, using Java-version, appears as Java version "1.8.0_151"

③, Echo $JAVA _home;echo $CLASSPATH; Echo $PATH;

　　　　

Ok

"Linux" Installation configuration JDK1.8