A ____ is a Component used to trigger an action or make a selection when the user clicks it.
A. JCheckBox
B. JButton
C. JLabel
D. JComboBox
Answer: B
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Which of the following operations do random access iterators have?
a) Prefix operator* to make available the container element for use as l-value or r-value. b) Overloaded binary operator+ to add an int value to the iterator to move the place the iterator points forward by the argument number of elements. c) Overloaded binary operator* to multiply the iterator by an int value to move the place the iterator points by a number of elements equal to the argument. d) Overloaded unary operator++ to move the place the iterator points forward by one element. e) Overloaded unary operator-- to move the place the iterator points backward by one element. f) Overloaded operator== and operator!= to determine whether two iterators point to the same element.
Consider the following relations for a database that keeps track of student enrollment in courses and the books adopted for each course:
STUDENT (SSN, Name, Major, Bdate) COURSE (Course#, Quarter, Grade) ENROLL (SSN, Course#, Quarter, Grade) BOOK_ADOPTION (Course#, Quarter, Book_ISBN) TEXT (Book_ISBN, Book_Title, Publisher, Author) Specify the foreign keys for this schema, stating any assumptions you make.
Explain how access control lists might be implemented.
What will be an ideal response?
Data mining can be a challenge to individual privacy.
a. true b. false