If you do not want subclasses to be able to provide new implementation details, you can add the keyword ____ to methods. Doing so keeps derived classes from being able to override the method.
A. partial
B. abstract
C. virtual
D. sealed
Answer: D
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Which of the following statements is false?
a. Algebraic expressions must be typed in straight-line form using Python’s op-erators. b. The following code multiplies 10 times the quantity 5 + 3, yielding the result 80: 10 * (5 + 3) c. Parentheses in an expression are said to be redundant (unnecessary) if re-moving them yields the same result. d. The parentheses in part b) above are redundant.
An ____________ allows data to flow from your program.
(a) input stream (b) output stream (c) file name (d) all of the above
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Indicate whether the statement is true or false
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Indicate whether the statement is true or false