## CS
1401, Quiz 4, TR version, based on Test 1

**Date:** Thursday, September 25, 2014

**Name** (please type legibly, ideally in block letters):
______________________________________________________________________
3. The following formula enables us to
compute the volume V of a box with sides x, y, and z: V = xyz.
Assuming that x, y, and z are already placed in the corresponding variables of type double, write a
Java code statement for assigning the corresponding value to the variable v of type double. Explain,
step-by-step, which arithmetic operations will be performed first, which next, etc., and
trace the computations on the example when x = 2.0, y = 3.0, and z = 4.0.
Explain what happens if you simply write xyz in
your Java code.

(Turn over, please)

7. National Geographic is one of the most popular magazines.
Write a piece of code that decides which of the three given magazines
is the most popular. The titles of three magazines are stored in the
variables *mag1*, *mag2*, and *mag3*, and the
numbers of subscribers to each of these magazines is stored in the
variables *sub1*, *sub2*, and *sub3*. Use
if-then statements to write down a piece of Java code that prints
the title of the most popular of the three magazines.
*Comment:* There is no need to read anything, assume that all
six variables have already been assigned values.