A stack can be adapted to store __________ data types.
a. all
b. only built-in C++
c. only abstract
d. deque-like
e. None of these
a. all
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There are two general approaches to attacking a symmetric encryption scheme: cryptanalytic attacks and __________ attacks.
Fill in the blank(s) with the appropriate word(s).
Suppose you enter 34.3, the ENTER key, 57.8, the ENTER key. Analyze the following code.
``` 1 Scanner input = new Scanner(System.in); 2 double v1 = input.nextDouble(); 3 double v2 = input.nextDouble(); 4 String line = input.nextLine(); ``` a. After line 2 is executed, v1 is 34.3. b. After line 3 is executed, v2 is 57.8. c. After line 4 is executed, line contains an empty string. d. After line 4 is executed, line is null. e. After line 4 is executed, line contains character "\n".