How to configure jdk environment under Linux

1. Go to the official website to download the jdk package for linux, such as jdk-8u162-linux-x64.tar.gz

2. Create a directory and copy the jdk package to it, such as home/haha/user/java

3. Enter the directory in the console and execute tar zxvf jdk-8u162-linux-x64.tar.gz to decompress it.

4. Configure environment variables:

Open the console, run sudo vi /etc/profile, insert the following configuration content into the file, then save and exit (first press esc, then press :wq)

 JAVA_HOME=/home/haha/user/java/jdk1.8.0_162
 PATH=$JAVA_HOME/bin:$PATH
 CLASSPATH=.:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jar
 export JAVA_HOME
 export PATH
 export CLASSPATH

5. Run source /etc/profile to make the environment effective

6. Enter java -version in the terminal to see if it is successful (if successful, the corresponding version number will appear).

Summarize

The above is the editor's introduction to the configuration of the JDK environment under Linux. I hope it will be helpful to everyone. If you have any questions, please leave me a message and I will reply to you in time!