I think the problem is that Tab / Shift+Tab start behaving differently when the focus comes to a JTable. For just about every other component, Tab gives focus to the "next" component and Shift+Tab gives focus to the "previous" component. When a JTable has focus, Tab and Shift+Tab change cell selection all of a sudden. I myself actually find that a bit annoying.
When a JTable has focus, Tab and Shift+Tab change cell selection all of a sudden. I myself actually find that a bit annoying.
What about tabbing out of a text component? It's the same there. This has been the normal behavior on GUI platforms that long predated Swing or Java. Screen elements that accept Tab require Ctrl+Tab to move to the next element in the tab order.
The behavior can probably be easily modified by getting the key binding for Ctrl+Tab and mapping it to Tab, in the WHEN_FOCUSED (and maybe WHEN_ANCESTOR_OF_FOCUSED_COMPONENT, to cater to the editing state) map(s). As a user accustomed to using Tab / Shift+Tab to move to the next/previous cells not only in a GUI table, but also in just about any spreadsheet software, I might find that annoying
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