Use the key statement of XML Schema to de?ne the following key constraints for the document in Figure 15.4
a. The key for the collection of all Student elements
b. The key for the collection of all Course elements
c. The key for the collection of all Class elements
a.
b.
c.
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Which of the following is false about the new operator and the object for which it allocates memory?
a. It calls the object’s constructor. b. It returns a pointer. c. It does not require the size of the object to be explicitly specified in the new expression. d. It automatically destroys the object after main is exited.
A __________ does NOT indicate where (or how) the data is physically stored.
a. physical I/O request b. logical I/O request c. both A and B d. neither A nor B
A(n) ____________________ is a pathway inside the computer that is used to transfer information to the CPU or to peripherals attached to the computer.
Fill in the blank(s) with the appropriate word(s).
What does the following code do? The first code listing contains the declaration of the Shape class. Each Shape object represents a closed shape with a number of sides. The second code listing contains a method (Mystery) created by a client of the Shape class. What does this method do?
What will be an ideal response?