Answer:
The small panels (containing lables and text fields) have been added
to left and right panels that use BoxLayout with vertical alignment.
The small panels (containing lables and text fields) have been added
to left and right panels that use BoxLayout with vertical alignment.
Here is a diagram showing the left and right panels
(which use BoxLayout with vertical alignment).
The small panels are not shown.
Is it absolutely necessary to use nested panels in this example?