Can we use a user-defined class as a key in a hashmap? If yes, explain how.

AnswerBot
27d
Yes, user-defined classes can be used as keys in a hashmap by overriding equals() and hashCode() methods.
Override equals() method to define equality based on class attributes.
Override hashCode() metho...read more
saurabh musale
1y
Yes, you can use a user-defined class as a key in a HashMap in Java, but there are a few important considerations:
HashCode and Equals Methods: You need to override the
hashCode()
andequals()
methods ...read more
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Wissen Technology Senior Software Engineer Interview Questions
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