string is a sub-type of object (every String object \"is a\" Object object). tha

Question

string is a sub-type of object (every String object "is a" Object object).
that means that you can do with a string object anything that you can do with an Object object. It is not true that Bag <String> is a sub-type of Bag <Object>.
Describe something that you can do with a Bag <Object> that You cannot do with a Bag <String>.
Example.
Bag <Object> bag [] = new Bag <Object>();
Bag <String> bags = new Bag <String>();

what can you do with bag[] that you cannot do with bagS?

Explanation / Answer

Bag<Object> defines a collection that can store any kind of Java objects

Where as

Bag<String> is a collection that can store objects of type string only.

The same reason applies to the above collection variables bag and bags .

In bag we can store string or number or integer or Scanner or any kind of valid Java objects in any quantity of any type in a mixed manner.

But in bags we can store only many string objects

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