Java Reference
In-Depth Information
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// Fig. 10.5: SalariedEmployee.java
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// SalariedEmployee concrete class extends abstract class Employee.
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public class
SalariedEmployee
extends
Employee
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{
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private double
weeklySalary;
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// constructor
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public
SalariedEmployee(String firstName, String lastName,
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String socialSecurityNumber,
double
weeklySalary)
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{
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super
(firstName, lastName, socialSecurityNumber);
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if
(weeklySalary <
0.0
)
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throw new
IllegalArgumentException(
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"Weekly salary must be >= 0.0"
);
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this
.weeklySalary = weeklySalary;
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}
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// set salary
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public void
setWeeklySalary(
double
weeklySalary)
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{
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if
(weeklySalary <
0.0
)
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throw new
IllegalArgumentException(
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"Weekly salary must be >= 0.0"
);
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this
.weeklySalary = weeklySalary;
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}
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// return salary
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public double
getWeeklySalary()
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{
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return
weeklySalary;
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}
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// calculate earnings; override abstract method earnings in Employee
@Override
public double
earnings()
{
return
getWeeklySalary();
}
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// return String representation of SalariedEmployee object
@Override
public
String toString()
{
return
String.format(
"salaried employee: %s%n%s: $%,.2f"
,
super
.toString(),
"weekly salary"
, getWeeklySalary());
}
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}
// end class SalariedEmployee
Fig. 10.5
|
SalariedEmployee
concrete class extends
abstract
class
Employee
.
