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This article will explain in detail how to configure java environment variables in Linux system. The editor thinks it is very practical, so I share it for you as a reference. I hope you can get something after reading this article.

1. Uninstall the system with java version java-version

Check to see if Linux comes with openjdk

Yum-y remove java* to uninstall the built-in jdk

Then use java-version to check if the uninstall is successful.

2. Download the required version of jdk

Whether linux is x86 (32-bit) or x64 (64-bit), enter the command in linux:

Uname-a

Returning x86 / 64 means 64-bit, while returning i686 or i386 is 32-bit.

2. Create a java folder

Cd / usrmkdir java

3. Copy jdk to the java directory and extract the copy file cp / home/upload/jdk-8u181-linux-x64.tar.gz / usr/java/

Extract the file tar-zxvf jdk-8u181-linux-x64.tar.gz

Decompressed directory jdk1.8.0_181 jdk-8u181-linux-x64.tar.gz

4. Configure java environment variable to modify / etc/profile configuration file, and add at the end:

JAVA_HOME=/usr/java/jdk1.8.0_181

CLASSPATH=$JAVA_HOME/lib/

PATH=JAVA_HOME/bin

Export PATH JAVA_HOME CLASSPATH

5. Execute source / etc/profile6 and check the installation: "1.8.0,81" of java-versionjava version indicates that the configuration is successful.

This is the end of this article on "how to configure java environment variables in Linux system". I hope the above content can be of some help to you, so that you can learn more knowledge. if you think the article is good, please share it for more people to see.

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