Package io.github.skenvy

Class Sudoku

java.lang.Object

io.github.skenvy.Sudoku

public class Sudoku
extends Object

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
final class	Sudoku.InvlalidSudokuCongiguration	Used for sudoku related exceptions.

Field Summary

Fields

Modifier and Type	Field	Description
int[][][][]	board	The known and determined values that populate the grid.
boolean[][][][]	cellFilled	Whether a cell is filled or not.
boolean[][][][]	errorInSquare

Constructor Summary

Constructors

Constructor	Description
Sudoku()
Sudoku(int size)
Sudoku(int[][][][] boardIn)

Method Summary

Modifier and Type	Method	Description
boolean	boardCheckComplete()
void	boardCheckErrors()
int	boardCheckPlacesFilled()
boolean	boardCheckValid()
boolean	checkSoleCandidate()
boolean	checkUniqueCandidate()
void	deliminatePotential(int k0, int k1, int k2, int k3, int k4)
String[]	digestAsArray()
boolean	errorExists()
boolean	initialiseBoard()
void	initialiseNumberPresentGridRowCol(boolean clear)
void	initialisePlaceCanContain(boolean clear)
void	initialisePlaceFilled()
int	iterateReductionOfCanContainInGridByRowCol()
int	iterateReductionOfCanContainInRowColByGrid()
int	iterateReductionOfCanContainSubsetHidden()
int	iterateReductionOfCanContainSubsetVisible()
int	iterateSoleCandidate()
int	iterateUniqueCandidate()
static void	main(String[] args)
String[]	operationsAsArray()
boolean[]	placeCanContainCheckCollision(int j0, int j1, int j2, int j3, int k0, int k1, int k2, int k3)
boolean	placeCanContainCheckDoesCollide(int j0, int j1, int j2, int j3, int k0, int k1, int k2, int k3, int collisions)
void	printBoardOut()
void	printDigest()
void	printOperations()
void	readBoardIn(String[] boardRows)
boolean	reductionOfCanContainInGridByRowCol()
boolean	reductionOfCanContainInRowColByGrid()
boolean	reductionOfCanContainSubsetHidden()
boolean	reductionOfCanContainSubsetVisible()
void	solveBoard()
boolean	solveBoardEasy()
boolean	solveBoardHard()
boolean	solveBoardModerate()
int[]	subsetCollisionAt(int subsetSize, int numberOfTrueSubsets, int[] subsetFoundAt, int[][][] subsets)
void	subsetCollisionAtRolling(int subsetSize, int numberOfTrueSubsets, int[] subsetFoundAt, int[][][] subsets)
void	textFieldAdd(String a)
void	updateNumberPresentGridRowCol()
void	updatePlaceCanContain()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

board

public int[][][][] board

The known and determined values that populate the grid. Is initialised with the already known cell values, and is then populated with those determined through solving.

cellFilled

public boolean[][][][] cellFilled

Whether a cell is filled or not.

errorInSquare

public boolean[][][][] errorInSquare

Constructor Details

Sudoku

public Sudoku()

Sudoku

public Sudoku(int size)

Sudoku

public Sudoku(int[][][][] boardIn)
       throws Sudoku.InvlalidSudokuCongiguration

Throws:

Sudoku.InvlalidSudokuCongiguration

Method Details

main

public static void main(String[] args)

readBoardIn

public void readBoardIn(String[] boardRows)

printBoardOut

public void printBoardOut()

initialiseBoard

public boolean initialiseBoard()

initialisePlaceFilled

public void initialisePlaceFilled()

initialisePlaceCanContain

public void initialisePlaceCanContain(boolean clear)

updatePlaceCanContain

public void updatePlaceCanContain()

initialiseNumberPresentGridRowCol

public void initialiseNumberPresentGridRowCol(boolean clear)

updateNumberPresentGridRowCol

public void updateNumberPresentGridRowCol()

boardCheckValid

public boolean boardCheckValid()

boardCheckErrors

public void boardCheckErrors()

errorExists

public boolean errorExists()

boardCheckComplete

public boolean boardCheckComplete()

boardCheckPlacesFilled

public int boardCheckPlacesFilled()

printDigest

public void printDigest()

digestAsArray

public String[] digestAsArray()

printOperations

public void printOperations()

operationsAsArray

public String[] operationsAsArray()

textFieldAdd

public void textFieldAdd(String a)

solveBoard

public void solveBoard()

solveBoardEasy

public boolean solveBoardEasy()

solveBoardModerate

public boolean solveBoardModerate()

solveBoardHard

public boolean solveBoardHard()

iterateSoleCandidate

public int iterateSoleCandidate()

checkSoleCandidate

public boolean checkSoleCandidate()

iterateUniqueCandidate

public int iterateUniqueCandidate()

checkUniqueCandidate

public boolean checkUniqueCandidate()

iterateReductionOfCanContainInRowColByGrid

public int iterateReductionOfCanContainInRowColByGrid()

reductionOfCanContainInRowColByGrid

public boolean reductionOfCanContainInRowColByGrid()

iterateReductionOfCanContainInGridByRowCol

public int iterateReductionOfCanContainInGridByRowCol()

reductionOfCanContainInGridByRowCol

public boolean reductionOfCanContainInGridByRowCol()

iterateReductionOfCanContainSubsetVisible

public int iterateReductionOfCanContainSubsetVisible()

reductionOfCanContainSubsetVisible

public boolean reductionOfCanContainSubsetVisible()

iterateReductionOfCanContainSubsetHidden

public int iterateReductionOfCanContainSubsetHidden()

reductionOfCanContainSubsetHidden

public boolean reductionOfCanContainSubsetHidden()

deliminatePotential

public void deliminatePotential(int k0,
 int k1,
 int k2,
 int k3,
 int k4)

subsetCollisionAt

public int[] subsetCollisionAt(int subsetSize,
 int numberOfTrueSubsets,
 int[] subsetFoundAt,
 int[][][] subsets)

subsetCollisionAtRolling

public void subsetCollisionAtRolling(int subsetSize,
 int numberOfTrueSubsets,
 int[] subsetFoundAt,
 int[][][] subsets)

placeCanContainCheckDoesCollide

public boolean placeCanContainCheckDoesCollide(int j0,
 int j1,
 int j2,
 int j3,
 int k0,
 int k1,
 int k2,
 int k3,
 int collisions)

placeCanContainCheckCollision

public boolean[] placeCanContainCheckCollision(int j0,
 int j1,
 int j2,
 int j3,
 int k0,
 int k1,
 int k2,
 int k3)