Question

n Java, which of the following exceptions is generated when you try to addan object that is incompatableto a collection
UnsupportedOperationException
ClassCastException
NullPointerException
IllegalState Exception​

Answer 1

Answer:

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Answer 2

The correct answer is ClassCastException.

• UnsupportedOperationException: This exception is thrown when an operation is not supported by a particular implementation of a collection. It is typically thrown when trying to modify an immutable collection.

• ClassCastException: This exception is thrown when an object is not of the expected type. For example, if you try to add an object of type String to a collection of integers, a ClassCastException will be thrown.

• NullPointerException: This exception is thrown when an attempt is made to perform an operation on a null object. It can be thrown when attempting to add a null object to a collection.

• IllegalStateException: This exception is thrown when the state of an object is not as expected. It can be thrown when trying to add an object to a collection that is full or when attempting to add an object to a collection that has been closed.

Therefore, the correct answer is ClassCastException.

In summary, ClassCastException is the appropriate exception to be thrown when trying to add an object that is incompatible with a collection. This occurs when the object is not of the expected type, and trying to add it would result in a type mismatch error

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