Identical objects and identical boxes
104030
Distributing identical objects to identical boxes
69173
How to describe two different objects?
52526
Circular duplicates strike again
73297
Two idempotent matrices are similar iff they have the same rank
54631
Distribute $N$ objects to $K$ boxes such that no box has more than $c$ objects in it
141740
Different ways of Arranging balls in boxes
151233
Why are duplicates not being merged?
124763
Distinguishing identical particles
68590
Consolidating duplicate array items
14745
Java: Detect duplicates in ArrayList?
137032
Additional Boxes - Criteria, Longevity, Manipulability
146601
Comparing two objects .
109904
Test if two things typeset identical results
95798
Compare object instances for equality by their attributes
147903
Similar matrices-Identity
61847
Its inside and outside is/are same
131222
Is there a Java library that can "diff" two Objects?