Install Java 10 using Oracle JDK

sudo add-apt-repository ppa:linuxuprising/java

$ sudo apt install oracle-java10-installer
Reading package lists... Done
Building dependency tree
Reading state information... Done
Package oracle-java10-installer is not available, but is referred to by another
package.
This may mean that the package is missing, has been obsoleted, or
is only available from another source

E: Package 'oracle-java10-installer' has no installation candidate