The fastest way to obtain information about the habits, interests, and likes of a target audience is to use a(n) ____________________ to locate Web sites with statistics and other data about the target audience’s lifestyle, needs, and preferences.

Which of the following function prototypes is correct?

a) double average(int, ...) b) double average(..., int); c) double average(int, ...); d) double average(int, ... , int);

After the following program is finished, how many bytes are written to the file t.dat?

``` import java.io.*; public class Test { public static void main(String[] args) throws IOException { DataOutputStream output = new DataOutputStream( new FileOutputStream("t.dat")); output.writeChar('A'); output.close(); } }``` a. 2 bytes. b. 4 bytes. c. 8 bytes. d. none of the above.