Chained exceptions are useful for finding out about ________.
a. exceptions thrown using the chained keyword.
b. checked exceptions only.
c. an original exception that was caught before the current exception was thrown.
d. the current exception’s chain of superclasses.
c. an original exception that was caught before the current exception was thrown.
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Which of the following is true?
a) Unions may be compared using the == operator. b) The address operator (&) cannot be used to take the address of a union. c) Unions may only contain two data types. d) Only one union member, and thus one data type, can be referenced at a time
Which of the following is not an operation that can be performed on a union?
a) comparing using the != operator b) taking the address (&) of a union c) accessing union members using the structure member operator d) assigning a union to another union of the same type