ALPHA STAGE!
No bugs have been identified in the code as of now. Also, there are more features to be implemented but the essential functionalities are already there.
Description: Implemented via JFrame GUI: character insertion/deletion (utilizing doubly-linked-lists constructed of ArrayLists), cursor-reposition (w/ left/right arrow-keys), line-wrap, undo/redo (utilizing stacks for edit-tracking), persistent storage.
Practice mission: Constructing LinkedLists out of ArrayLists; coordinating between GUI and behind-the-scenes; the GUI itself; user-input processing; OOP; persistent-storage management; stacks (for undo/redo)

Undo key-combination: Ctrl+Z (Windows/Linux) or Command+Z (macOS)
Redo key-combination: Ctrl+Y (Windows/Linux) or Command+Y (macOS)

To do: implementing word-wrapping (not just general line-wrapping), adding features for down/up arrow key, changing the cursor-position in response to mouse actions, having the GUI only redraw the line, not the whole document

Most of the project was developed on September 6-11, 18, 23, and 26, 2025.

Illustration of some text-editor code components (GitHub Pages): https://seohyun-hwang.github.io/homepage//imageHTML/textEditorJavaIllustration-09.26.2025.html

Thank you for your attention.
~ Seohyun