Introduction to Java Programming, Eighth Edition, Y. Daniel Liang
Chapter 2 Elementary Programming
21
-25 % 5 is _____
A.
1
B.
2
C.
3
D.
4
E.
0
22
24 % 5 is _____
A.
1
B.
2
C.
3
D.
4
E.
0
23
-24 % 5 is _____
A.
-1
B.
-2
C.
-3
D.
-4
E.
0
24
-24 % -5 is _____
A.
3
B.
-3
C.
4
D.
-4
E.
0
25
To add a value 1 to variable x, you write
A.
1 + x = x;
B.
x += 1;
C.
x := 1;
D.
x = x + 1;
E.
x = 1 + x;
26
To add number to sum, you write (Note: Java is case-sensitive)
A.
number += sum;
B.
number = sum + number;
C.
sum = Number + sum;
D.
sum += number;
E.
sum = sum + number;
27
Suppose x is 1. What is x after x += 2?
A.
0
B.
1
C.
2
D.
3
E.
4
28
Suppose x is 1. What is x after x -= 1?
A.
0
B.
1
C.
2
D.
-1
E.
-2
29
What is x after the following statements?
int x = 1;
int y = 2;
x *= y + 1;
A.
x is 1.
B.
x is 2.
C.
x is 3.
D.
x is 4.
30
What is x after the following statements?
int x = 1;
x *= x + 1;
A.
x is 1.
B.
x is 2.
C.
x is 3.
D.
x is 4.
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