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This article mainly introduces how to install java under linux, has a certain reference value, interested friends can refer to, I hope you can learn a lot after reading this article, the following let the editor take you to understand it.

Install java under linux

Java installation

Yum search java

Let's take a look at the corresponding version of java. I installed the java package at version 1.8.

Yum install java-1.8.0-openjdk.x86_64

Once installed, you can use the java command.

Configure the JAVA_HOME configuration file:

Vim / etc/profile, fill in the bottom.

# set java environmentJAVA_HOME=/usr/lib/jvm/java-1.8.0-openjdk-1.8.0.151-1.b12.el6_9.x86_64JRE_HOME=$JAVA_HOME/jreCLASS_PATH=.:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jar:$JRE_HOME/libPATH=$PATH:$JAVA_HOME/bin:$JRE_HOME/binexport JAVA_HOME JRE_HOME CLASS_PATH PATH

You need to source after filling it out, and the order is

Source / etc/profile

Still want to use javac?

Yum install-y java-1.8.0-openjdk-devel.x86_64

Once this is installed, you can use javac.

Unloading

Note: sometimes if the installation fails or you want to install a new version of JDK, you can uninstall JDK first:

a. First, execute the command to check the version of JDK under the server: the command is as follows:

Rpm-qa | grep jdk

b. Then execute the command:

Yum-y remove java java-1.6.0-openjdk-1.6.0.0-1.50.1.11.5.el6_3.x86_64

Delete each version of the query above in turn.

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