Java Reference
In-Depth Information
28.
abc\ndef
29.
HELLO TONY
30.
The output is
2 + 2 = 4
2 + 2 = 22
In the expression
"2 + 2 = " + (2 + 2)
the integers
2
and
2
in
(2 + 2)
are
added to obtain the integer
4
. When
4
is connected to the string
"2 + 2"
with a
plus sign, the integer
4
is converted to the string
"4"
and the result is the string
"2 + 2 = 4"
. However
"2 + 2 = " + 2 + 2
is interpreted by Java to mean
("2 + 2 = " + 2) + 2
The first integer
2
is changed to the string
"2"
because it is being combined with
the string
"2 + 2"
. The result is the string
"2 + 2 = 2"
. The last integer
2
is
combined with the string
"2 + 2 = 2"
. So, the last
2
is converted to the string
"2"
. So the final result is
"2 + 2 = 2" + "2"
which is
"2 + 2 = 22"
.
31.
sam.increaseAge(10);
32. The two kinds of comments are
//
comments and
/* */
comments. Everything
following a
//
on the same line is a comment. Everything between a
/*
and a
matching
*/
is a comment.
33.
Hello
Student
34. The normal spelling convention is to spell named constants using all uppercase
letters with the underscore symbol used to separate words.
35.
public static final
int
ANSWER = 42;
Programming Projects
Many of these Programming Projects can be solved using AW's CodeMate.
To access these please go to:
www.aw-bc.com/codemate
.
1.
One way to measure the amount of energy that is expended during exercise is to
use metabolic equivalents (MET). Here are some METS for various activities:
Running 6 MPH:
10 METS
Basketball:
8 METS
Sleeping:
1 MET
