The operation P in a semaphore scheme requires a(n) ____ sequence to be performed as an indivisible action in a single machine cycle.
A. test, fetch, increment, and store
B. test, fetch, decrement, and store
C. increment and store
D. decrement and store
Answer: B
Computer Science & Information Technology
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Computer Science & Information Technology
What is displayed by the following code?
``` System.out.print("A,B;C".replaceAll(",;", "#") + " "); System.out.println("A,B;C".replaceAll("[,;]", "#")); ``` a. A B C A#B#C b. A#B#C A#B#C c. A,B;C A#B#C d. A B C A B C
Computer Science & Information Technology