Suppose you are using the nextIntegerFrom0ToNExclusive() function to generate a random index. Given a value N, this function will generate a random integer from the range ____.
A. N-1..N+N
B. 0..N
C. 0..N-1
D. 0..N+1
Answer: C
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Which of the following statements is false?
a. InputStream and OutputStream are abstract classes for performing byte-based I/O. b. Tubes are synchronized communication channels between threads. c. A filter stream provides additional functionality, such as aggregating data bytes into meaningful primitive-type units. FilterInputStream and FilterOutputStream are typically extended, so some of their filtering capabilities are provided by their concrete subclasses. d. A PrintStream performs text output. System.out and System.err are PrintStreams.
COGNITIVE ASSESSMENT Which of the following is NOT true about protecting your credit cards from scanning devices?
A. Security experts recommend placing each of your credit cards in separate locations, rather than stacking them. B. Some signals have a range as far as 30 feet. C. The radio waves to not penetrate metal or water easily. D. The words PayPass, PayWave, and Blink are indicators that your credit card has RFID technology.
Analyze the following code:
int i = 3434; double d = 3434; System.out.printf("%5.1f %5.1f", i, d); a. The code compiles and runs fine to display 3434.0 3434.0. b. The code compiles and runs fine to display 3434 3434.0. c. i is an integer, but the format specifier %5.1f specifies a format for double value. The code has an error.
Click the ____________________ check box to remove the check mark if you want to create a multi-page document that does not require facing pages, such as flash cards.
Fill in the blank(s) with the appropriate word(s).