CentOS7 Installing the JDK

1. First download the Linux version of the JDK on the official website, such as jdk-8u91-linux-x64.tar.gz, you can also use the wget command to follow the download link to download

2. Execute the tar zxvf download compression package name command, unzip

3. Copy the extracted folder to the destination path, such as/usr/developer/java

4. Execute the vim/etc/profile command to edit the/etc/profile file, add (press I to enter edit mode) at the end of the file

Export java_home=/usr/developer/java/jdk1.8. 0_91export jre_home=/usr/developer/java/jdk1.8.0_91/  Jreexport CLASSPATH=.:$JAVA _home/lib/dt.jar:$JAVA _home/lib/tools.jar:$JRE _home/ Lib:$CLASSPATHexport PATH=$JAVA _home/bin:$PATH

5. Save and exit the Vim editor (press ESC to exit edit mode and enter: Wq Enter)

6. Execute the source/etc/profile command to make the previous operation effective.

7. Test installation succeeded. Enter the Java-version command with the following results indicating successful installation

CentOS7 Installing the JDK