Assignment 3 Solution

Concepts tested by this program:

Exceptions

New concepts tested by this program

Generic Classes

Doubly Linked List

Ordered Doubly Linked List

Iterators

Comparators




Your assignment is to write a generic doubly-linked list class and a generic sorted doubly-linked list class that inherits from your generic doubly-linked class. There is no additional GUI required for this assignment. Your list classes will be tested with Junit tests.




BasicDoubleLinkedList class

This generic doubly-linked list relies on a head (reference to first element of the list) and tail (reference to the last element of the list). Both are set to null when the list is empty. Both point to the same element when there is only one element in the list. A node structure has only three fields: data and the prev and next references. The class must only define the following entities: an inner class Node, an inner class that implements ListIterator (for the iterator method), head and tail references and an integer representing the list size. However only the next(), hasNext(), previous() and hasPrevious() methods of the ListIterator that you are required to implement. The rest of the methods can return can throw the UnsupportedOperationException, such as:

public void remove() throws UnsupportedOperationException{

throw new UnsupportedOperationException();}

All the entities are defined as protected so they can be accessed by the subclass. Follow the Javadoc that is provided.




SortedDoubleLinkedList class

A generic sorted doubly-linked list constructed using a provided Comparator. It extends BasicDoubleLinkedList class. Follow the Javadoc that is provided.




Exception Handling

UnsupportedOperationException – this exception is a Java library exception and will be returned by the addtoFront and addToEnd implementations of the SortedLinkedList class and by the remove method of the iterator.

NoSuchElementException – this exception is a Java library exception and will be returned by the next function within the iterator class when there are no more elements in the linked list.










Deliverables:

Java files - The src folder with your linked lists classes, exceptions and Junit Test (.java) files

Javadoc files - The doc folder with your javadoc for student generated files

UML Class Diagram (an image, not the proprietary format, must be a .jpg)

Assignment 3 Checklist




Deliverable format: The above deliverables will be packaged as follows. Two compressed files in the following formats:

LastNameFirstName_AssignmentX_Complete.zip [a compressed file containing the following]

UML.jpg

Assignment 3 Checklist (filled in with YES or NO or ?)

doc [a directory] please include the entire doc folder with the javadoc for student

generated files

file1.html (example)

file2.html (example)

src [a directory] contains your linked lists classes, exceptions and Junit Test (.java) files

File1.java (example)

File2.java (example)

File_Test.java (example)

LastNameFirstName_AssignmentX_Moss.zip [a compressed file containing only the following]

contains .java file which includes the linked lists classes, exceptions and Junit Test (.java) files – NO FOLDERS!!

File1.java (example)

File2.java (example)










 

Assignment 3 Grade Sheet – Spring 2016




Name ______________________ Blackboard Date/Time:______________________




DOCUMENTATION 25 points
CheckList for Assignment 3 is included and completed 1 pt _____
Class documentation - Javadoc for all user created classes 5 pt _____
Class Description, @author

Method description, @param, @return

Test Cases 10 pt _____

JUnit Test Class

Implement STUDENT test for BasicDoubleLinkedListTest

and SortedDoubleLinkedTest

UML Diagram 4 pt _____

Lessons Learned 5 pt _____

In 3+ paragraphs, highlight your lessons learned and learning experience from working on this project. How did you do? What have you learned? What did you struggle with? How will you approach your next project differently?




PROGRAMMING 75 points
Internal class documentation (within source code) 5 pt _____

Class description using Javadoc

Author’s Name, Class, Class Time, @author

Methods commented using Javadoc, @param, @return

Compiles and Runs without runtime errors or warnings 10 pts _____

Accuracy

Public tests – JUnit test given to you 6 pts _____

Your JUnit Tests – STUDENT test for BasicDoubleLinkedListTest

and SortedDoubleLinkedTest 4 pts _____

Private tests – other tests run by the instructor 10 pts _____

Program Detail

BasicDoubleLinkedListStudent 20 points

Implements all methods of BasicDoubleLinkedList

addToEnd, addToFront 3 pt _____

getFirst, getLast 2 pt _____

getSize 1 pt _____

iterator -inner class implements ListIterator 5 pt _____

remove 3 pt _____

retrieveFirstElement, retrieveLastElement 3 pt _____

toArray 3 pt _____

SortedDoubleLinkedList 12 points

Implements all methods of the SortedDoubleLinkedList

add 8 pt _____

addToEnd, addToFront throw exceptions 2 pt _____

iterator – uses superclass iterator method 2 pt _____




Exception handling 8 pt _____

java.lang.UnsupportedOperationException

java.lang.NoSuchElementException




Total 100 pt _____

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