A(n) _____ is part of a location path that restricts the node set to only those nodes that fulfill a specified condition.
A. ?absolute path
B. ?predicate
C. ?attribute
D. ?template
Answer: B
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Which of the following is not a compilation error?
a. Neglecting to initialize a local variable in a method before it is used. b. Placing a semicolon at the end of the first line of an if statement. c. Omitting the left and right parenthesis for the condition of an if statement. d. All are compilation errors.
Which of the following is the complement of (x && y)?
1. !x && !y 2. ! (x && y) 3. !x || !y a) 2 only b) 1 and 2 c) 3 only d) 2 and 3
In the linked list implementation of the queue, we had both a destructor and a makeEmpty function because:
A. the destructor needs to call the makeEmpty function B. the client may want to empty out the queue without destroying it; however, the client shouldn’t have to remember to use makeEmpty to avoid memory leak upon destruction of the queue C. the makeEmpty function needs to call the destructor; otherwise, the queue cannot be destroyed D. only one is used to free dynamic memory, the other cannot
What kind of notation is used to store memory addresses?
A. hexadecimal B. octal C. binary D. decimal