How to install the latest java version in Raspbian (Stretch)

Introduction The default version of java provided in the latest raspbian images are outdated, so we are going to install from the ppa:webupd8team/java repository instead. Please note that add-apt-repository ppa:webupd8team/java will not work, so we will need to add the repository manually. Installation First we need to register the GPG key (required for authentication). So...