Dijkstra Shortest Path Algorithms Project Dissertation

Dijkstra Shortest Path Algorithms Project Dissertation

Order ID	53563633773
Type	Essay
Writer Level	Masters
Style	APA
Sources/References	4
Perfect Number of Pages to Order	5-10 Pages

Description/Paper Instructions

Dijkstra Shortest Path Algorithms Project Dissertation

package shortestPath;

/**
 * One object of Connections class represents a connection between
 * two cities with a positive distance.
 *
 */
public class Connection
{
// the name of the source city
private String source;
// the name of destination city
private String destination;

// the distance between cities
private int distance;

/**
    * Constructor takes name for source and name of destination.
    * The distance is the cost between them.
    * @param source   name of the source
    * @param dest name of the destination
    * @param dist the cost between source and dest
    */
   public Connection(String source, String dest, int dist)
   { 
      this.source = source;
      this.destination = dest;
      this.distance = dist;
}

   /**
    * Source city
    * @return the city name
    */
   public String getSource()
   {  return source; }

   /**
    * Destination city
    * @return the city name
    */
   public String getDestination()
   {  return destination;    }    
  

   /**
    * Distance between source and destination city
    * @return int value of distance
    */
   public int getDistance()
   {  return distance;   }

   /**
    * Two connections are the same if the source and destinations have the same name.
    * @return true if same connection. Otherwise false.
    */
   @Override
public boolean equals(Object other)
   {
      if (other instanceof Connection)
      {
         Connection otherConn = (Connection)other;
         if (otherConn.source.equals(this.source) &&
             otherConn.destination.equals(this.destination))
            return true;
}
      return false;
}

   /**
    * Returns a string representation with the item name and count.
    */
   public String toString()
   {
      return String.format(“%s, %s, %d\n”, source, destination, distance);
}

package shortestPath;

import java.util.ArrayList;
import java.util.Arrays;

public class RouteFinder
{
private ArrayList<Connection> readRoutesBetweenCities;

/**
    * Parameterized constructor for an object of class RouteFinder.
    * Reads in a CSV file of source and destination cities and
    * converts it to a graph.
    * @param filePath The input file to parse.  
    */
   public RouteFinder(String filePath)
   {
      // TODO: Define the class BaseballFileReader
      BaseballFileReader reader = new BaseballFileReader();

// TODO: Define the readFile() method which reads the CSV (Comma Separated Value)
      //       file of connections between cities  and creates a specified ArrayList
      //       of Connection objects.
      //
      // NOTE: Catch all exceptions in the readFile() method.
      //       That means readFile() method should not throw an exception.
readRoutesBetweenCities = reader.readFile(filePath);

// Check the size of the resulting ArrayList object.
if (readRoutesBetweenCities.size() < 1)
      {
         System.out.println(“WARNING: The list of cities is empty.”);
         return;
}

      System.out.printf(“The list of cities has %d items. \n”, readRoutesBetweenCities.size());
}
  
   /**
    * Accessor method returns the list of items read from input file.
    * @return the routes between cities.
    */
   public ArrayList<Connection> getConnectionsBetweenCities()
   {
      return readRoutesBetweenCities;
}
  
    public static void main(String[] args) throws Exception
    {
      // NOTE: Make sure to use *relative* path instead of specifying the entire path.
      //       Otherwise, your program will result in run time errors when the instructor
      //       tests your implementation.
final String FILEPATH = “resources/BaseballCitiesEdgeCosts.txt”;

RouteFinder bag = new RouteFinder(FILEPATH);
ArrayList<Connection> connections = bag.getConnectionsBetweenCities();

// displays the prices of items in the input file
System.out.println(“Connections found between cities hosting Baseball games:”);
System.out.println(connections);
     
     
// build graph
FHgraph<String> baseBallRoutes = new FHgraph<String>();
connections.forEach(current ->
            baseBallRoutes.addEdge(current.getSource(),current.getDestination(), current.getDistance()));
       
baseBallRoutes.showAdjTable();

// dijkstra called from inside
        // TODO: Update dijsktra() method to avoid paths which go through the
        //       requested list of cities to avoid.
        final String startingCity = “San Francisco”;
        final String [] destinations = {“Boston”, “Chicago A”, “Chicago N”};
        final ArrayList<String> citiesToAvoid = new ArrayList(Arrays.asList(new String[]{“Los Angeles X”, “Milwaukee”}));
System.out.println(“Showing distances to ” + startingCity);
System.out.println(“Cities to avoid are ” + citiesToAvoid);
baseBallRoutes.showDistancesTo(startingCity, citiesToAvoid);
System.out.println();

        for (String current : destinations)
        {
         // TODO: Update showShortestPath() to call dijkstra with requested cities to avoid.
            baseBallRoutes.showShortestPath(startingCity, current, citiesToAvoid);
System.out.println();
}

      System.out.println(“Done.”);

Dijkstra Shortest Path Algorithms Project Dissertation

RUBRIC QUALITY OF RESPONSE NO RESPONSE POOR / UNSATISFACTORY SATISFACTORY GOOD EXCELLENT Content (worth a maximum of 50% of the total points) Zero points:  Student failed to submit the final paper. 20 points out of 50:  The essay illustrates poor understanding of the relevant material by failing to address or incorrectly addressing the relevant content; failing to identify or inaccurately explaining/defining key concepts/ideas; ignoring or incorrectly explaining key points/claims and the reasoning behind them; and/or incorrectly or inappropriately using terminology; and elements of the response are lacking. 30 points out of 50:  The essay illustrates a rudimentary understanding of the relevant material by mentioning but not full explaining the relevant content; identifying some of the key concepts/ideas though failing to fully or accurately explain many of them; using terminology, though sometimes inaccurately or inappropriately; and/or incorporating some key claims/points but failing to explain the reasoning behind them or doing so inaccurately.  Elements of the required response may also be lacking. 40 points out of 50:  The essay illustrates solid understanding of the relevant material by correctly addressing most of the relevant content; identifying and explaining most of the key concepts/ideas; using correct terminology; explaining the reasoning behind most of the key points/claims; and/or where necessary or useful, substantiating some points with accurate examples.  The answer is complete. 50 points:  The essay illustrates exemplary understanding of the relevant material by thoroughly and correctly addressing the relevant content; identifying and explaining all of the key concepts/ideas; using correct terminology explaining the reasoning behind key points/claims and substantiating, as necessary/useful, points with several accurate and illuminating examples.  No aspects of the required answer are missing. Use of Sources (worth a maximum of 20% of the total points). Zero points:  Student failed to include citations and/or references. Or the student failed to submit a final paper. 5 out 20 points:  Sources are seldom cited to support statements and/or format of citations are not recognizable as APA 6th Edition format. There are major errors in the formation of the references and citations. And/or there is a major reliance on highly questionable. The Student fails to provide an adequate synthesis of research collected for the paper. 10 out 20 points:  References to scholarly sources are occasionally given; many statements seem unsubstantiated.  Frequent errors in APA 6th Edition format, leaving the reader confused about the source of the information. There are significant errors of the formation in the references and citations. And/or there is a significant use of highly questionable sources. 15 out 20 points:  Credible Scholarly sources are used effectively support claims and are, for the most part, clear and fairly represented.  APA 6th Edition is used with only a few minor errors.  There are minor errors in reference and/or citations. And/or there is some use of questionable sources. 20 points:  Credible scholarly sources are used to give compelling evidence to support claims and are clearly and fairly represented.  APA 6th Edition format is used accurately and consistently. The student uses above the maximum required references in the development of the assignment. Grammar (worth maximum of 20% of total points) Zero points:  Student failed to submit the final paper. 5 points out of 20:  The paper does not communicate ideas/points clearly due to inappropriate use of terminology and vague language; thoughts and sentences are disjointed or incomprehensible; organization lacking; and/or numerous grammatical, spelling/punctuation errors  10 points out 20:  The paper is often unclear and difficult to follow due to some inappropriate terminology and/or vague language; ideas may be fragmented, wandering and/or repetitive; poor organization; and/or some grammatical, spelling, punctuation errors 15 points out of 20:  The paper is mostly clear as a result of appropriate use of terminology and minimal vagueness; no tangents and no repetition; fairly good organization; almost perfect grammar, spelling, punctuation, and word usage. 20 points:  The paper is clear, concise, and a pleasure to read as a result of appropriate and precise use of terminology; total coherence of thoughts and presentation and logical organization; and the essay is error free. Structure of the Paper (worth 10% of total points) Zero points:  Student failed to submit the final paper. 3 points out of 10: Student needs to develop better formatting skills. The paper omits significant structural elements required for and APA 6th edition paper. Formatting of the paper has major flaws. The paper does not conform to APA 6th edition requirements whatsoever. 5 points out of 10: Appearance of final paper demonstrates the student’s limited ability to format the paper. There are significant errors in formatting and/or the total omission of major components of an APA 6th edition paper. They can include the omission of the cover page, abstract, and page numbers. Additionally the page has major formatting issues with spacing or paragraph formation. Font size might not conform to size requirements.  The student also significantly writes too large or too short of and paper 7 points out of 10: Research paper presents an above-average use of formatting skills. The paper has slight errors within the paper. This can include small errors or omissions with the cover page, abstract, page number, and headers. There could be also slight formatting issues with the document spacing or the font Additionally the paper might slightly exceed or undershoot the specific number of required written pages for the assignment. 10 points: Student provides a high-caliber, formatted paper. This includes an APA 6th edition cover page, abstract, page number, headers and is double spaced in 12’ Times Roman Font. Additionally, the paper conforms to the specific number of required written pages and neither goes over or under the specified length of the paper.

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