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Chapter 15. Collections and Maps > Comparing Objects
15.1. Comparing Objects
The majority of the non-final methods of the Object class are meant to be overridden. They provide general contracts for objects, which the classes overriding the methods should honor.
It is important to understand how and why a class should override the equals() and hashCode() methods. Implementation of the compareTo() method of the Comparable interface is closely related to the other two methods.
