Instructions on how to install java jdk in kali linux: download the latest java se sdk version. again, at the time of writing this guide the available version was jdk-7u45-linux-x64.tar.gz. download and save the file in /root directory. untar the archive and move to /opt. The contents and details of how-to install oracle java jdk 8 on kali linux are expressly minimal to give focus only to the essentials instructions and commands and make the tut easier to understand
