public Grid(String puzzle) {
String[] initRows = puzzle.split("[\\n\\r]");
List<String> rowList = new ArrayList<String>();
for (String row : initRows) {
if (row.trim().length() > 0) {
rowList.add(row);
}
}
String[] rows = rowList.toArray(new String[rowList.size()]);
init(rows.length, true);
for (int row = 0; row < rows.length; row++) {
String cols = rows[row];
int col = 0;
for (int idx = 0; idx < cols.length(); idx++) {
char c = cols.charAt(idx);
if (c == ' ') {
continue;
}
int value = Integer.parseInt(String.valueOf(c));
if (value != 0) {
setValue(row, col, value);
}
col++;
}
if (col != rows.length) {
throw new IllegalArgumentException(puzzle);
}
}
}
private Grid(int size, boolean createSquares) {
init(size, createSquares);
}