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 formatter = Formatter([lower, upper]);

  return "Confidence: We're $probability% sure that the result "
      'is between ${formatter.format(lower)} '
      'and ${formatter.format(upper)}.';
}