Ugly Fonts on Ubuntu with Java 9, 10

For some reason there were a few packages of JDK out where the fontconfig.Ubuntu.properties file was present in the lib directory of the JDK.
That file was used to tune the used typesetting details in the pre-Ubuntu Font era. Having that in place would result to render replacements of possible not installed fonts. So Java displays an ugly user interface.

Solution:

Remove the fontconfig.Ubuntu.properties file from the lib directory of the JDK.

Ugly Wrong Sized Fonts in Terminal

Sometimes Terminal could really present interesting display experiences.

Solution:

Try to change the font used in Terminal to something else, like: Lucida Typewriter