You will design and implement a computer version of the 19th century puzzle called the
Fifteen Puzzle.
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When the user drags the slider to change the number of rows, the appropriate number of new buttons will be created and the board will be reset into a solved state.Note that it cannot refer to code (because that's not testable by running the program). So "completed the FifteenButton class" isn't a user story. You must list your user stories in the order in which you plan to implement them. (If you want an example of how they build on each other, see the Swing project we did in class.)