Java Reference
In-Depth Information
Self-Test Exercises
(continued)
14. Modify the following class defi nition so it correctly implements the
Cloneable
interface (all the new instance variables are shown):
public class
PricedItem
extends
StockItem
{
private double
price;
...
}
15. Modify the following class defi nition so it correctly implements the
Cloneable
interface (all the instance variables are shown):
public class
Record
{
private
StockItem item1;
private
StockItem item2;
private
String description;
...
}
16. Modify the following class defi nition so it correctly implements the
Cloneable
interface (all the new instance variables are shown):
public class
BigRecord
extends
Record
{
private
StockItem item3;
...
}
17. Modify the defi nition of the class
Date
( Display 4.13 ) so it implements
the
Cloneable
interface. Be sure to defi ne the method
clone
in the style
of Display 13.7 .
18. Modify the defi nition of the class
Employee
( Display 7.2 ) so it implements
the
Cloneable
interface. Be sure to defi ne the method
clone
in the style
of Display 13.8 .
19. Modify the defi nition of the class
HourlyEmployee
( Display 7.3 ) so it
implements the
Cloneable
interface. Be sure to defi ne the method
clone
in
the style of Display 13.8 .
