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Preliminary: Get a copy of the app Towers of Hanoi, available on Canvas. This app is intended to display instructions (moves) for the Towers
Preliminary: Get a copy of the app "Towers of Hanoi, available on Canvas. This app is intended to display instructions (moves) for the Towers of Hanoi problem. At the moment, the app simply displays in the Text View: 1. Number of rings 2. Source tower 3. Destination tower 4. Spare tower You'll notice that the UI employs two "radio group" widgets for the input of the source tower and the destination tower. (The spare tower is inferred automatically.) Read the Java code to see how input from a radio-group widget is handled. Run the app and see the widgets in action. Lab Work: Write the Java code to complete this app. Namely, in the MainActivity class: 1. Complete the recursive towers method to display the actual moves (in the TextView) to solve the puzzle. 2. Call towers from the show Moves method that responds to the button click. REMARKS Notice that the towers method (whose header is already provided) uses strings for the towers" names. The names of the towers themselves are defined in the strings.xml file and aggregated into an array in the app's arrays.xml file (in the values directory). In the Java code, they are loaded into the String array "tower" (a class data member) in the onCreate method using. tower = getResources ().getStringArray (Rarray.tower); This demonstrates another means of defining and getting resources from a file.
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