Yes, we can keep an object of a Class as a key in HashMap.

• The key in a HashMap can be any non-null object.

• The key's class must override the hashCode() and equals() methods for proper functioning.

• If tw...read more

Yes, you can use an object of a class as a key in a HashMap. To do so, the class of the key object must implement the hashCode and equals methods, which are used by the HashMap to determine the hash c...read more

yes we can just its needed to override hashcode() and equals() methods