The software described in this documentation is either in Extended Support or Sustaining Support. See https://www.oracle.com/us/support/library/enterprise-linux-support-policies-069172.pdf for more information.
Oracle recommends that you upgrade the software described by this documentation as soon as possible.

Chapter 4 Working With On-Screen Keyboards

You typically use on-screen keyboards in situations where no keyboard exists or access to a keyboard is not possible; for example, wearable computers or palm devices. You can also use on-screen keyboards with a mouse or no-hand tools.