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5.
Are the identifiers
firstName
and
FirstName
the same?
6.
Evaluate the following expressions:
a.
25 / 3
b.
20 - 12 / 4 * 2;
c.
32 % 7
d.
3 - 5 % 7
e.
18.0 / 4
f.
28 - 5 / 2.0
g.
17 + 5 % 2 - 3
h.
15.0 + 3.0 * 2.0 / 5.0
7.
If
x = 5
,
y = 6
,
z = 4
, and
w = 3.5
, evaluate each of the following
expressions, if possible. If it is not possible, state the reason.
a.
(x + z) % y
b.
(x + y) % w
c.
(y + w) % x
d.
(x + y ) * w
e.
(x % y) % z
f.
(y % z) % x
g.
(x * z) % y
h.
((x * y) * w) * z
8.
Given:
int
num1, num2, newNum;
double
x, y;
Which of the following assignments are valid? If an assignment is not valid,
state the reason. When not given, assume that each variable is declared.
num1 = 35;
a.
newNum = num1 - num2;
b.
num1 = 5; num2 = 2 + num1; num1 = num2 / 3;
c.
num1 * num2 = newNum;
d.
x = 12 * num1 - 15.3;
e.
num1 * 2 = newNum + num2;
f.
x / y = x * y;
g.
num2 = num1 % 2.0;
h.
newNum = (
int
) (x) % 5;
i.
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