Why would a programmer use a flag?
A. To remember when or if something has happened in a program.
B. As a temporary variable in a complicated equation.
C. To let the operating system know an error has occurred.
D. Flags are used to indicate program shutdown status.
A. To remember when or if something has happened in a program.
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When a method's return type is a class, what is actually returned to the calling program?
a. an object of that class b. a reference to an object of that class c. the values in the object that the method accessed d. nothing - the return type is simply for documentation in this situation
What output will be produced by the following code?
``` public class Demo { public static void main(String[] args) { System.out.println("The output is:"); foo(23); System.out.println(); } public static void foo(int number) { if (number > 0) { foo(number / 2); System.out.print(number % 2); } } } ```
A(n) ____________________ allows you to perform tasks using the keyboard by pressing one or more keyboard keys.
Fill in the blank(s) with the appropriate word(s).
Each category of information warfare consists of both offensive and defensive strategies.
a. true b. false