Java Reference
In-Depth Information
Display 7.2
The Base Class Employee
(part 1 of 2)
1
/**
3
A name string of "No name" indicates no real name specified yet.
2
Class Invariant: All objects have a name string and hire date.
4
A hire date of January 1, 1000 indicates no real hire date specified yet.
5
*/
6
public class
Employee
7 {
8
private
String name;
The class
Date
is defined in
Display 4.13 .
9
private
Date hireDate;
10
public
Employee()
11 {
13 hireDate =
new
Date("January", 1, 1000);
//Just a placeholder.
14 }
12 name = "No name";
/**
15
16
Precondition: Neither theName nor theDate is null
.
*/
17
18
public
Employee(String theName, Date theDate)
19 {
20
if
(theName ==
null
|| theDate ==
null
)
21 {
22 System.out.println("Fatal Error creating employee.");
23 System.exit(0);
24 }
25 name = theName;
26 hireDate =
new
Date(theDate);
27 }
28
public
Employee(Employee originalObject)
29 {
30 name = originalObject.name;
31 hireDate =
new
Date(originalObject.hireDate);
32 }
33
public
String getName()
34 {
35
return
name;
36 }
37
public
Date getHireDate()
38 {
39
return new
Date(hireDate);
40 }
