Assume that the classes BlankISBN, NegativePrice, and NegativeNumberOrdered are exception classes that inherit from Exception. The following code is a constructor for the Book class. What must be true about any method that instantiates the Book class with this constructor? public Book(String ISBNOfBook, double priceOfBook,
Int numberOrderedOfBook)
{
If (ISBNOfBook == "")
Throw new BlankISBN();
If (priceOfBook

Question

Assume that the classes BlankISBN, NegativePrice, and NegativeNumberOrdered are exception classes that inherit from Exception. The following code is a constructor for the Book class. What must be true about any method that instantiates the Book class with this constructor? public Book(String ISBNOfBook, double priceOfBook,
Int numberOrderedOfBook)
{
If (ISBNOfBook == "")
Throw new BlankISBN();
If (priceOfBook < 0)
Throw new NegativePrice(priceOfBook);
If (numberedOrderedOfBook < 0)
Throw new NegativeNumberOrdered(numberOrderedv);
ISBN = ISBNOfBook;
Price = priceOfBook;
NumberedOrdered = numberOrderedOfBook;
}
A) It must call the constructor with valid data or a compiler error will occur.
B) It must contain an inner class that extends the IOException class.
C) It must handle all of the possible exceptions thrown by the constructor or have its own throws clause specifying them.
D) All of these are true.

Quizplus · Accepted Answer

The constructor throws custom exceptions if certain conditions are met (blank ISBN, negative price, or negative number ordered). Therefore, any method that calls this constructor must either handle these exceptions (using try-catch blocks) or declare that it throws these exceptions (using a throws clause), ensuring that the calling method or its caller handles them.

Assume That the Classes BlankISBN, NegativePrice, and NegativeNumberOrdered Are Exception