Java Reference
In-Depth Information
with the following:
System.out.printf("%.2f + %.2f = %.2f %n",
num1, num2, (num1 + num2));
15.
4 3 2 1
17.
0 3 8 15 24
19. Loop control variable:
j
The initialization statement:
j
¼
1;
Loop condition:
j <
¼
10;
Update statement:
j++
The statement that updates the value of
s
:
s
¼
s + j * (j - 1);
21.
2 7 17 37 77 157
23. a.
*
b.
infinite loop
c.
infinite loop
d.
****
e.
******
f.
***
25. The relationship between
x
and
y
is:
3
y
¼
x
.
Output:
x
¼
19683, y
¼
10
27.
0 - 24
25 - 49
50 - 74
75 - 99
100 - 124
125 - 149
150 - 174
175 - 200
29.
a. Both; b.
do
...
while
;c.
while
;d.
while
31.
In a pretest loop, the loop condition is evaluated before executing the body of the
loop. In a posttest loop, the loop condition is evaluated after executing the body of the
loop. A posttest loop executes at least once, while a pretest loop may not execute at all.
33.
(Assume that
console
is a
Scanner
object initialized to the standard input device.)
int
num;
do
{
System.out.println("Enter a number less than 20 "
+ "or greater than 75: ");
num = console.nextInt();
}
while
(20 <= num && num <= 75);
Search WWH ::
Custom Search