Downloading the Installation package
Download the Linux installation package from the official website
Uploading the Installation Package
Go to /usr/local and create a new directory for the JDK
CD /usr/local mkdir Java ## directory nameCopy the code
Upload the downloaded JDK package to the newly created directory above
Decompress the installation package
Go to the corresponding directory and run the tar -zxvf jdK-8u291-linux-x64.tar. gz command to decompress the file.
X: extracts files from the tar package. Z: indicates that the tar package is compressed by gzip, so you need to use gunzip to decompress it. V: displays detailed informationCopy the code
Configuring environment Variables
Edit the /etc/profile file and add the following configuration at the end
Export JAVA_HOME=/usr/local/ Java /jdk1.8.0_291 export JRE_HOME=${JAVA_HOME}/jre export CLASSPATH=.:${JAVA_HOME}/lib:${JRE_HOME}/lib export PATH=${JAVA_HOME}/bin:$PATHCopy the code
Then type source /etc/profile for the environment variable configuration to take effect immediately.
validation
Enter java-version and javac respectively to view the installation
The JDK environment in Linux has been successfully installed.
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