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Editor to share with you how to install linux jdk and set environment variables, I believe most people do not know much about it, so share this article for your reference, I hope you can learn a lot after reading this article, let's go to know it!

1. View the number of linux bits

Check whether linux is 32-bit or 64-bit, which affects the version of JDK that needs to be downloaded

System digits jdk digits x86 (32 bits) 32 bits x86 bits 64 (64 bits)

32 bit

64 bit

Enter in the linux command:

Uname-a

If it is a 64-bit machine, it will output x86x64

two。 Download JDK

Download address: https://www.oracle.com/technetwork/java/javase/downloads/jdk11-downloads-5066655.html

Corresponding to step 1, download the 64-bit linx version

3. Install JDK

Upload the downloaded jdk to linux and extract the zip file

Tar-zxvf jdk-11.0.6_linux-x64_bin.tar.gz

4. Set environment variabl

Modify / etc/profile file

Vim / etc/profile, add the following:

Change export JAVA_HOME=/usr/local/jdk/jdk-11.0.6 # to the installation path export CLASSPATH=.:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jarexport PATH=$JAVA_HOME/bin:$PATH of jdk

Source / etc/profile enables environment variables to take effect

5. Test result

Enter the command in linux:

[root@localhost local] # java-versionjava version "11.0.6" 2020-01-14 LTSJava (TM) SE Runtime Environment 18.9 (build 11.0.6+8-LTS) Java HotSpot (TM) 64-Bit Server VM 18.9 (build 11.0.6+8-LTS, mixed mode)

The above result indicates that jdk is installed successfully.

What is Linux system Linux is a free-to-use and free-spread UNIX-like operating system, is a POSIX-based multi-user, multi-task, multi-threaded and multi-CPU operating system, using Linux can run major Unix tools, applications and network protocols.

These are all the contents of the article "how to install jdk and set environment variables in linux". Thank you for reading! I believe we all have a certain understanding, hope to share the content to help you, if you want to learn more knowledge, welcome to follow the industry information channel!

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