In order, pre order, and post order traversals can be accomplished using

____________________ code is simply the instructions defining how a program works.

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

Create a simple text-editor GUI that allows the user to open a file. The GUI should display the text of the file and then close the file. The user can modify the file’s contents. When the user chooses to save the text, the modified contents should be written to the file, replacing any other con- tents. The user also should be able to clear the display.

What will be an ideal response?