Mercurial > hg > Sudoku / file diff

     1.1 --- a/src/main/java/de/uapcore/sudoku/Field.java	Sat Jul 25 15:56:48 2020 +0200
     1.2 +++ b/src/main/java/de/uapcore/sudoku/Field.java	Mon Jul 27 10:56:17 2020 +0200
     1.3 @@ -36,7 +36,7 @@
     1.4   * Cells are identified by zero-based indices from top-left to bottom-right.
     1.5   */
     1.6  public final class Field extends JPanel {
     1.7 -    private SudokuTextField[][] cells;
     1.8 +    private final SudokuTextField[][] cells;
     1.9  
    1.10      /**
    1.11       * Constructs a new 9x9 Sudoku grid.
    1.12 @@ -124,6 +124,7 @@
    1.13       * @param x horizontal position
    1.14       * @param y vertical position
    1.15       * @param v the cells value
    1.16 +     * @throws IllegalArgumentException if v is not between 0 and 9
    1.17       */
    1.18      public void setCellValue(int x, int y, int v) {
    1.19          cells[x][y].setValue(v);
    1.20 @@ -198,6 +199,7 @@
    1.21       * @param x horizontal position from 0 to 2
    1.22       * @param y vertical position from 0 to 2
    1.23       * @return a two-dimensional array containing the square cell values
    1.24 +     * @throws IllegalArgumentException if the coordinates are out of bounds
    1.25       */
    1.26      public int[][] getSquare(int x, int y) {
    1.27          if (x < 0 || x > 2 || y < 0 || y > 2) {
    1.28 @@ -219,12 +221,13 @@
    1.29       *
    1.30       * @param y the row position
    1.31       * @return an array containing the row values
    1.32 +     * @throws IllegalArgumentException if y is not between 0 and 8
    1.33       */
    1.34      public int[] getRow(int y) {
    1.35          if (y < 0 || y > 8) {
    1.36              throw new IllegalArgumentException("Invalid row number");
    1.37          }
    1.38 -        int row[] = new int[9];
    1.39 +        int[] row = new int[9];
    1.40  
    1.41          for (int x = 0; x < 9; x++) {
    1.42              row[x] = getCellValue(x, y);
    1.43 @@ -238,12 +241,13 @@
    1.44       *
    1.45       * @param x the column position
    1.46       * @return an array containing the column values
    1.47 +     * @throws IllegalArgumentException if x is not between 0 and 8
    1.48       */
    1.49      public int[] getColumn(int x) {
    1.50          if (x < 0 || x > 8) {
    1.51              throw new IllegalArgumentException("Invalid column number");
    1.52          }
    1.53 -        int column[] = new int[9];
    1.54 +        int[] column = new int[9];
    1.55  
    1.56          for (int y = 0; y < 9; y++) {
    1.57              column[y] = getCellValue(x, y);