Java environment installation and configuration tutorial under Linux

This article mainly introduces you in detailLinuxThe second part of learning, Java environmentInstallationConfiguration tutorial, has certain reference value, interested Friends can refer to

This tutorial shares the Java environment installation configuration for your reference. The specific content is as follows

jdk version: jdk-8u131-linux-x64.rpm

Note: The following operations must be performed under the root user or a user with root permissions

1. Copy dk-8u131-linux-x64.rpm to the /home directory

cp jdk-8u131-linux-x64.rpm /home/

2. Unzip the rpm file

rpm -ivh jdk-8u131-linux-x64.rpm

3. EnvironmentConfiguration of variables

Note: The configuration of environment variables is a little more troublesome, but it is not particularly difficult.

1. Enter the following command to enter the configuration file

vim /etc/profile

2. After entering the configuration file, it is uneditable status . If you want to edit data, first enter 'i', the word insert will be displayed below, and you can insert it. Just add the following code to the configuration file (remember to change the path to your own installation path).

JAVA_HOME=/usr/java/jdk1.8.0_131
CLASSPATH=.:/usr/java/jdk1.8.0_131/jre/lib/rt,jar
PATH=$PATH/usr/java/jdk1.8.0_131
ecport PATH CLASSPATH JAVA_HOME

3. After inserting, press 'esc', which will switch to the non-insertable state. Then enter ':wq' to save and exit.

4. Enter javac to check whether the configuration is successful

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