Thanks to you David Pynes, I Created from using your visual app (https://davidpynes.github.io/Tutorials/Trees/Tree_05/) Great tool, thanks for creating it.
Written by javinpaul
I am Java programmer, blogger, working on Java, J2EE, UNIX, FIX Protocol. I share Java tips on http://javarevisited.blogspot.com and http://java67.com