compareTo method

@override int compareTo(BasicDate other)

Compares this object to another object.

Returns a value like a Comparator when comparing this to other. That is, it returns a negative integer if this is ordered before other, a positive integer if this is ordered after other, and zero if this and other are ordered together.

The other argument must be a value that is comparable to this object.

Implementation

@override
int compareTo(BasicDate other) {
  if (year > other.year) {
    return 1;
  } else if (year < other.year) {
    return -1;
  } else if (month > other.month) {
    return 1;
  } else if (month < other.month) {
    return -1;
  } else if (day > other.day) {
    return 1;
  } else if (day < other.day) {
    return -1;
  } else {
    return 0;
  }
}