ball.game.sudoku

Class Puzzle

java.lang.Object

java.util.AbstractMap<K,V>

ball.util.MapView<Coordinate,V>

ball.util.CoordinateMap<Cell>

ball.game.sudoku.Puzzle

All Implemented Interfaces:

Serializable, Map<Coordinate,Cell>, SortedMap<Coordinate,Cell>, TableModel

public class Puzzle
extends CoordinateMap<Cell>

Sudoku Puzzle.

Version:

$Revision: 5285 $

Author:

Allen D. Ball

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class ball.util.MapView

MapView.EntrySet

Nested classes/interfaces inherited from class java.util.AbstractMap

AbstractMap.SimpleEntry<K,V>, AbstractMap.SimpleImmutableEntry<K,V>

Nested classes/interfaces inherited from interface java.util.Map

Map.Entry<K,V>

Field Summary

Fields inherited from class ball.util.MapView

entrySet

Constructor Summary

Constructors

Constructor and Description
Puzzle() Sole constructor.

Method Summary

Modifier and Type	Method and Description
boolean	apply(Rule rule) Method to apply the argument Rule to solve this Puzzle.
boolean	isLegal() Method to test if the current Cell values constitute a legal Sudoku puzzle.
boolean	isSolved() Method to test if the current Cell values constitute a solved Sudoku puzzle.
List<CoordinateMap<Cell>>	nonets() Method to get the sub-CoordinateMaps representing the 3x3 boxes (nonets).
List<CoordinateMap<Cell>>	subMaps() Method to get the sub-CoordinateMaps representing the 9-Cell groups where the digits 1-9 must appear exactly once.
List<CoordinateMap<Cell>>	subMapsOf(Cell cell) Method to get the sub-CoordinateMaps representing the 9-Cell groups including the argument Cell.

Methods inherited from class ball.util.CoordinateMap

addTableModelListener, asList, clear, column, columns, comparator, containsKey, fireTableCellUpdated, fireTableChanged, fireTableDataChanged, fireTableRowsDeleted, fireTableRowsInserted, fireTableRowsUpdated, fireTableStructureChanged, firstKey, get, getColumnClass, getColumnCount, getColumnName, getMax, getMaxX, getMaxY, getMin, getMinX, getMinY, getRowCount, getTableModelListeners, getType, getValueAt, headMap, includes, isCellEditable, lastKey, map, put, put, remove, removeTableModelListener, resize, resize, row, rows, setValueAt, subMap, subMap, tailMap

Methods inherited from class ball.util.MapView

entrySet, get

Methods inherited from class java.util.AbstractMap

clone, containsKey, containsValue, equals, hashCode, isEmpty, keySet, putAll, size, toString, values

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface java.util.SortedMap

entrySet, keySet, values

Methods inherited from interface java.util.Map

compute, computeIfAbsent, computeIfPresent, containsKey, containsValue, equals, forEach, get, getOrDefault, hashCode, isEmpty, merge, putAll, putIfAbsent, remove, replace, replace, replaceAll, size

Constructor Detail

Puzzle

public Puzzle()

Sole constructor.

Method Detail

nonets

public List<CoordinateMap<Cell>> nonets()

Method to get the sub-CoordinateMaps representing the 3x3 boxes (nonets).

Returns:

The List of 3x3 nonet CoordinateMaps.

subMaps

public List<CoordinateMap<Cell>> subMaps()

Method to get the sub-CoordinateMaps representing the 9-Cell groups where the digits 1-9 must appear exactly once. See CoordinateMap.rows(), CoordinateMap.columns(), and nonets().

Returns:

The List of Sudoku sub-CoordinateMaps.

subMapsOf

public List<CoordinateMap<Cell>> subMapsOf(Cell cell)

Method to get the sub-CoordinateMaps representing the 9-Cell groups including the argument Cell. See CoordinateMap.rows(), CoordinateMap.columns(), and nonets().

Parameters:

cell - The argument Cell.

Returns:

The List of Sudoku sub-CoordinateMaps for the argument Cell.

See Also:

subMaps()

isLegal

public boolean isLegal()

Method to test if the current Cell values constitute a legal Sudoku puzzle.

Returns:

true if this Puzzle is legal; false otherwise.

isSolved

public boolean isSolved()

Method to test if the current Cell values constitute a solved Sudoku puzzle.

Returns:

true if this Puzzle is solved; false otherwise.

apply

public boolean apply(Rule rule)

Method to apply the argument Rule to solve this Puzzle.

Parameters:

rule - The Rule to apply.

Returns:

true if Puzzle is modified; false otherwise.