import java.awt.Font;
import java.io.File;
import java.util.Arrays;
import java.util.Random;
import java.util.Scanner;
import javax.swing.JOptionPane;
import javax.swing.JScrollPane;
import javax.swing.JTextArea;

/**
 *
 * 
 * @author Bill Kraynek
 */
public class TestSudoku {

    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) throws Exception {
        int[][] puzzle = new int[9][9];
        int[][] solution;
        Scanner fileScan = new Scanner(new File("sudoku.data"));
        while (fileScan.hasNext()) {
            for (int i = 0; i < 9; i++) {
                for (int j = 0; j < 9; j++) {
                    puzzle[i][j] = fileScan.nextInt();
                }// end for
            }// end for
            String grid = getGrid("\n    The puzzle is \n\n", puzzle);
            solution = SolveSudoku.getSolution(puzzle);
            if (solution != null) {
                grid += getGrid("    The solution is \n\n", solution);
            } else {
                grid += "    No Solution";
            }// end if
            displayGrid(grid);
        }// end while
        puzzle = new int[9][9];
        String grid = getGrid("\n    The puzzle is \n\n", puzzle);
        solution = SolveSudoku.getSolution(puzzle);
        grid += getGrid("    The solution is \n\n", solution);
        displayGrid(grid);
    }// end main
    
    static String getGrid(String title, int[][] grid) {
        String out = title;
        for (int i = 0; i < 9; i++) {
            out += (i == 3 || i == 6) ? "    -----------------------\n" : "";
            out += "   ";
            for (int j = 0; j < 9; j++) {
                out += (j % 3 == 0 ? " |" : "") + (grid[i][j] == 0 ? "_|" : grid[i][j] + "|");
            }// end for
            out += "\n";
        }// end for
        out += "\n";
        return out;
    }

    static void displayGrid(String grid) {
        JTextArea outArea = new JTextArea(30, 30);
        outArea.setText(grid);
        outArea.setFont(new Font(Font.MONOSPACED, Font.BOLD, 20));
        JOptionPane.showMessageDialog(null, new JScrollPane(outArea));
    }
}