If I add 2 same attribute values for a object to a set...will I see 2 objects in the set, if yes what changes you make to the code to insert unique objects to a set

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No, you will not see 2 objects in the set. To insert unique objects to a set, you can override the equals() and hashCode() methods in the object class.

In a set, each element must be unique based on the equals() method. If you add 2 objects with the same attribute values, only one will be stored in the set.
To ensure uniqueness, override the equals() and hashCode() methods in the object class. This will define how objects are compared and stored in the set.
For example, if you have a Person class with attributes name and age, you can override equals() and hashCode() to consider both attributes for uniqueness.

If I add 2 same attribute values for a object to a set...will I see 2 objects in the set, if yes what changes you make to the code to insert unique objects to a set

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