Sudoku puzzle Program plan: Include required header files. Define the “SudokuPuzzle” class. Declare the two-dimensional array variables. In the SudokuPuzzle() constructor, Create objects of SudokoPuzzle class. Define the main() method. Create an object for Scanner class. Create an object for SudokoPuzzle class. Call initializePuzzle() method to initialize the puzzle. Display the puzzle values. The while loop executes until the true. If yes, Check whether the input is “q”. If yes, exit the program. Otherwise, check whether the input is “s”. If yes, set the guess value. Otherwise, check whether the input is “g”. If yes, get the allowed values. Otherwise, check whether the input is “c”. If yes, clear the puzzles. Check whether the puzzle value is not valid. If yes, display the error message. Otherwise, check whether the puzzle is full. If yes, display the success message. In the toString() method, Return the puzzle representation. In the addInitial() method, Check whether row and col is in between “0” to “9” and value is in between “1” to “9”. If yes, Set the puzzle values and the square value cannot be changed by puzzle solver. In the addGuess() method, Check whether row and col is in between “0” to “9” and value is in between “1” to “9” and start puzzle with “0”. If yes, set the guess value to puzzle. In the getValueIn() method, Return the value in given square. In the reset() method, Reset the puzzle value to blank. In the isFull() method, Check whether the puzzle is full and then set the flag value as “true”. In the getAllowedValues() method, Display the allowed values for puzzles. In the checkPuzzle() method, Check whether the values in the squares are legal. If yes, return true. In the checkRow() method, Check whether value is appears only once in row. If yes, return true. In the checkCol() method, Check whether value is appears only once in col. If yes, return true. In the checkSub() method, Check whether value is appears only once in 3 by 3 sub-array. If yes, return true. In the initializePuzzle() method, Call addInitial() method to initialize the puzzle to the board configuration example in the text.

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Chapter 7, Problem 11PP

Program Plan Intro

Sudoku puzzle

Program plan:

Include required header files.

Define the “SudokuPuzzle” class.

Declare the two-dimensional array variables.

In the SudokuPuzzle() constructor,

Create objects of SudokoPuzzle class.

Define the main() method.

Create an object for Scanner class.

Create an object for SudokoPuzzle class.

Call initializePuzzle() method to initialize the puzzle.

Display the puzzle values.

The while loop executes until the true. If yes,

Check whether the input is “q”. If yes, exit the program.

Otherwise, check whether the input is “s”. If yes, set the guess value.

Otherwise, check whether the input is “g”. If yes, get the allowed values.

Otherwise, check whether the input is “c”. If yes, clear the puzzles.

Check whether the puzzle value is not valid. If yes, display the error message.

Otherwise, check whether the puzzle is full. If yes, display the success message.

In the toString() method,

Return the puzzle representation.

In the addInitial() method,

Check whether row and col is in between “0” to “9” and value is in between “1” to “9”. If yes,

Set the puzzle values and the square value cannot be changed by puzzle solver.

In the addGuess() method,

Check whether row and col is in between “0” to “9” and value is in between “1” to “9” and start puzzle with “0”. If yes, set the guess value to puzzle.

In the getValueIn() method,

Return the value in given square.

In the reset() method,

Reset the puzzle value to blank.

In the isFull() method,

Check whether the puzzle is full and then set the flag value as “true”.

In the getAllowedValues() method,

Display the allowed values for puzzles.

In the checkPuzzle() method,

Check whether the values in the squares are legal. If yes, return true.

In the checkRow() method,

Check whether value is appears only once in row. If yes, return true.

In the checkCol() method,

Check whether value is appears only once in col. If yes, return true.

In the checkSub() method,

Check whether value is appears only once in 3 by 3 sub-array. If yes, return true.

In the initializePuzzle() method,

Call addInitial() method to initialize the puzzle to the board configuration example in the text.

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