Android smartphone are typically different from other smartphone devices in that:
A. Android devices use apps that are more secure than other devices.
B. Android devices use open source operating systems.
C. Android devices can only operate with a proprietary operating system.
D. Android devices can receive apps from different sources.
Answer: B. Android devices use open source operating systems.
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What will the following code display?
int number = 6; cout << ++number << endl; a. 6 b. 5 c. 7 d. 0
When you define a C++ class so that the result is an ADT, which of the following remarks about whether to make a member variable or function public or private are correct?
a. Make them all public. It simplifies life and makes things more efficient to be able access members anywhere. b. Don’t make member variables public. c. Make all member functions public. d. There are some member functions that shouldn’t be public, but most should be public.