Java Reference
In-Depth Information
Complete the method
getEnumeration()
so that it returns an anonymous inner
class that corresponds to the
Enumeration
interface for the names array in
NamesCollection
. Then write a
main
method that creates a
NamesCollection
object with a sample array of strings, retrieves the
Enumeration
for this class via
getEnumeration()
, and then iterates through the enumeration outputting each
name using the
getNext()
method.
4.
In Display 13.5, we described a sorting method to sort an array of type
Comparable[]
.
In Display 12.6, we described a sorting method that used the merge sort algorithm to
sort an array of type
double[]
into increasing order. Redo the method in Display 12.6
so it applies to an array of type
Comparable[]
. Also, do a suitable test program.
5.
In Display 13.5, we described a sorting method to sort an array of type
Comparable[]
.
In Display 12.8, we described a sorting method that used the quick sort algo-
rithm to sort an array of type
double[]
into increasing order. Redo the method
in Display 12.8 so it applies to an array of type
Comparable[]
. Also, do a suitable
test program.
6.
Redo the class
Person
in Display 5.19 so that it implements the
Cloneable
interface.
This may require that you also redo the class
Date
so it implements the
Cloneable
interface. Also, do a suitable test program.
7.
Redo the class
Person
in Display 5.19 so that the class
Date
is a private inner
class of the class
Person
. Also, do a suitable test program. (You need not start
from the version produced in Programming Project 6. You can ignore Program-
ming Project 6 when you do this project.)
8.
This is a combination of Programming Projects 6 and 7. Redo the class
Person
in Dis-
play 5.19 so that the class
Date
is a private inner class of the class
Person
and so that the
class
Person
implements the
Cloneable
interface. Also, do a suitable test program.
9.
Redo the class
Employee
and the class
HourlyEmployee
in Displays 7.2 and 7.3 so
that the class
Date
is an inner class of the class
Employee
and an inherited inner
class of the class
HourlyEmployee
. Also, do a suitable test program.
