toString method

@override String toString()

A string representation of this object.

Some classes have a default textual representation, often paired with a static parse function (like int.parse). These classes will provide the textual representation as their string representation.

Other classes have no meaningful textual representation that a program will care about. Such classes will typically override toString to provide useful information when inspecting the object, mainly for debugging or logging.

Implementation

@override
String toString() {
  final StringBuffer buffer = StringBuffer();
  for (int y = 0; y < height; y++) {
    for (int x = 0; x < width; x++) {
      buffer.write(get(x, y) ? "##" : "  ");
    }
    buffer.writeln();
  }
  return buffer.toString();
}