Java Interview Guide : 200+ Interview Questions and Answers - equals and hashCode methods

The video tutorial explains object comparison in Java, focusing on the '==' operator and the equals method. It highlights the default behavior of the equals method from the Object class and how to override it for custom comparisons. The tutorial also covers generating the equals method using Eclipse and introduces the hashCode method, emphasizing its role in collections like HashMap. Key properties of equals and hashCode methods are discussed, ensuring proper implementation for object comparison and distribution in collections.

What is the role of the ID field in the equals method implementation?

How can you generate an equals method in Eclipse?

Describe the relationship between equals and hash code methods.

What should you do if you override the equals method?