Java Reference
In-Depth Information
Objects implementsthenull-tolerant compare() methodtofirstcompareitsar-
guments for object identity by using == before calling the provided Comparator .
The equals() and deepEquals() methods define equivalence relations over
object references. Unlike Object.equals(Object o) , Ob-
jects.equals(Object a, Object b) handlesnullvalues,returningtruewhen
bothargumentsarenull,orwhenthefirstargumentisnonnulland a.equals(b) re-
turns true.
The deepEquals() method is used in the context of arrays (including nested ar-
rays)todetermineiftwoarraysare deeply equal (theyarebothnullortheycontainthe
deeply equal).
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