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Graphs
Introduction
The goal of this assignment is to program some graph implementations.
Download the file Assignment-2-Source.zip. The contents of this file include the following important classes and interfaces:
. All the interfaces you require for making a Graph. In particular, the IGraph interface includes comments describing all of the methods that a graph implementation should contain (these are in the graph.core package).
. An implementation of a Linked List, which you will need within your implementation (this is in the graph.util package and is named DLinkedList). You should not use built-in Java data structures for this assignment.
. An example of a Graph implementation: EdgeListGraph. You should study this file carefully, as the other implementations have some similar characteristics (this is in the graph.impl package).
. A program called EdgeListTest that shows some examples of code that can test some of the methods in the graph implementation (this is in the default package).
You are required to:
1. Implement an Adjacency List graph (in a file called
AdjacencyListGraph)
2. Implement an Adjacency Matrix graph (in a file called AdjacencyMatrixGraph).
In each case, you should also create a new testing class similar to EdgeListTest to check that your implementation is correct. Note: The program I have provided does not test all of the methods in the graph implementation. You should add some more tests to check other methods (e.g. removing the vertex HNL should mean that the number of incident edges on LAX to decrease by one).
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