Java Reference
In-Depth Information
9 }
10
11
/** Construct a geometric object with the specified color
12
* and filled value */
13
public
SimpleGeometricObject(String color,
boolean
filled) {
dateCreated =
new
java.util.Date();
14
15
this
.color = color;
16
this
.filled = filled;
17 }
18
19
/** Return color */
20
public
String getColor() {
21
return
color;
22 }
23
24
/** Set a new color */
25
public void
setColor(String color) {
26
this
.color = color;
27 }
28
29
/** Return filled. Since filled is boolean,
30
its get method is named isFilled */
31
public boolean
isFilled() {
32
return
filled;
33 }
34
35
/** Set a new filled */
36
public void
setFilled(
boolean
filled) {
37
this
.filled = filled;
38 }
39
40
/** Get dateCreated */
41
public
java.util.Date getDateCreated() {
42
return
dateCreated;
43 }
44
45
/** Return a string representation of this object */
46
public
String toString() {
47
return
"created on "
+ dateCreated +
"\ncolor: "
+ color +
48
" and filled: "
+ filled;
49 }
50 }
L
ISTING
11.2
CircleFromSimpleGeometricObject.java
1
public class
CircleFromSimpleGeometricObject
2
extends
SimpleGeometricObject
{
extends superclass
data fields
3
private double
radius;
4
5
public
CircleFromSimpleGeometricObject() {
6 }
7
8
constructor
public
CircleFromSimpleGeometricObject(
double
radius) {
9
this
.radius = radius;
10 }
11
12
public
CircleFromSimpleGeometricObject(
double
radius,
13 String color,
boolean
filled) {
14
this
.radius = radius;
15 setColor(color);
