The condition that must be true before execution of a program is called a ______ and the condition that will be true following execution of a program is called a ______.

Thread safety in JavaFX applications is achieved not by synchronizing thread actions, but by ensuring that programs manipulate the scene graph from only the JavaFX application thread. This technique is called ________.

a. thread restriction. b. scene graph confinement. c. thread confinement. d. None of the above.

When you are finished working with a presentation, you can close it and leave PowerPoint open. To do this, you click the ____________________ tab to open Backstage view, and then click the Close command.

Fill in the blank(s) with the appropriate word(s).