java.lang.Comparable<T> |
This interface should be implemented by all classes that wish to define a
natural order of their instances.
sort(Listjava.util.Arrays#sort
can then
be used to automatically sort lists of classes that implement this interface.
The order rule must be both transitive (if x.compareTo(y) < 0
and
y.compareTo(z) < 0
, then x.compareTo(z) < 0
must hold) and
invertible (the sign of the result of x.compareTo(y) must be equal to the
negation of the sign of the result of y.compareTo(x) for all combinations of
x and y).
In addition, it is recommended (but not required) that if and only if the
result of x.compareTo(y) is zero, then the result of x.equals(y) should be
true
.
Public Methods | |||||||||||
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Compares this object to the specified object to determine their relative
order.
|
Compares this object to the specified object to determine their relative order.
another | the object to compare to this instance. |
---|
another
;
a positive integer if this instance is greater than
another
; 0 if this instance has the same order as
another
.ClassCastException | if another cannot be converted into something
comparable to this instance. |
---|