Compares this object to another Comparable
Returns a value like a Comparator when comparing
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
other are ordered together.
other argument must be a value that is comparable to this object.
int compareTo(T other);
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Licensed under the Creative Commons Attribution-ShareAlike License v4.0.