What is the Contract Between equals() and hashCode() Methods in
In this short tutorial on ProgrammingKT, we explore the important contract between the equals() and hashCode() methods in Java. Understanding this contract is crucial for ensuring consistency and correctness when working with hash-based data structures and implementing custom classes.
📌 What You'll Learn:
1. If two objects are equal according to the equals() method, they must have the same hash code returned by the hashCode() method.
2. Conversely, if two objects have the same hash code, they are not necessarily equal according to the equals() method. However, it is desirable to have the equals() method verify their equality in such cases.
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