Almost have Step 1 working but just need to modify to add key of artID and value of artistID in TreeMap.

I. Step 1: Map is a very convenient structure for locating data. In this step, you are going to build a map by reading "exam4Arts.txt" that use "artID" as the key and "artistID" as the value.

A. What to do: 1. Modify ArtMap.java to do the following: - "map" of TreeMap that uses "artID" as key and "artistID" as its value. 2. Modify Exam4Step1.java to test ArtMap that you defined above by doing the following: - Ask for an artID - Print the corrosponding artistID.

3. The sample output follows:

Please enter an Art ID(0 to quit) ==> 1000 Artist not found! Please enter an Art ID(0 to quit) ==> 1001 Artist = 9 Please enter an Art ID(0 to quit) ==> 1042 Artist = 2 Please enter an Art ID(0 to quit) ==> 0 Bye!

Now, add methods and required code to do the following. Keep the output from Step1 intact.

II. Step 2: In this step, you are going to construct a map that uses artistID as the key and its corresponding ArtistNode as the value so that you may directly locate a particular ArtistNode based upon the entered artistID

A. What to do: 1. Rename your MyArtistNodes.java as MyArtists.java with the following modification: 1. Add a TreeMap named "map" that takes artistID as the key and ArtistNode as its value. (Notes : In this constructor, you simply add a statement to construct the map when you construct the ArrayList of Artist) 2. Use "map" to locate a particular ArtistNode.

2. Write Exam4Step2.java to test "MyArtist.java" that you defined above by doing the following:

A. What to do: 1. Pass "exam4artists,txt" when making an instance of MyArtists. 2. Ask for an artistID 3. As long as the inputted artistID > 0, do the following: i) Print the corresponding ArtistNode ii) Ask for another artistID

a. The sample output follows: Please enter an Artist ID(0 to quit) ==> 3 Artist = 3, Name = Carpenter, Total Artworks = 0, Total Value = 0.0 Please enter an Artist ID(0 to quit) ==> 5 Artist = 5, Name = Edwards, Total Artworks = 0, Total Value = 0.0 Please enter an Artist ID(0 to quit) ==> 12 Artist 12 not found! Please enter an Artist ID(0 to quit) ==> 0 Bye!

Required Files:

exam4Arts.txt:

1038 Spring Flowers 1 800 1050 Cattle Ranch 1 10000 1103 Trail End 1 8000 1042 Coffee on the Trail 2 7544 1013 Superstitions 3 78000 1021 Bead Wall 3 14000 1034 Beaver Pole Jumble 3 28000 1063 Asleep in the Garden 3 110000 1070 Beginnings 4 27500 1036 Blackhawk 5 25500 1017 Brittlecone 6 1300 1053 Blue Eyed Indian 6 40000 1056 Cavalry Is Coming 6 1900 1075 Western Boots and Spurs 6 6000 1077 Bull Riding 6 5200 1049 Buttercup with Red Lip 7 400 1018 Mountain Scene 8 2500 1055 Starlit Evening 9 9500 1096 Ceremonial Sticks 10 15000 1037 Floating World 7 2350 1109 Friends 8 16000 1084 Crossing the Platt River 9 2200 1072 Funnel 10 4500 1032 Rising Sun 7 2000 1060 Story Sticks 8 650 1044 Mexican Fiesta 9 14000 1047 Medicine Man 10 2500 1024 Spirit and Nature 7 592 1067 Owl in Flight 8 7000 1001 Red Rock Mountain 9 18000 1028 Tired Cowboy 10 4700 1054 Snake Charmer 7 4500 1068 Moonlight 8 9750 1069 Renaissance 9 5500 1113 Shadow House 10 5500 1114 Storytelling at the Campfire 7 18000 1064 Spirit Columns 8 7000 1002 Offerings 9 10000 1089 Life Lessons 10 4125 1091 Stone Palette 7 11500 1074 Storm on the Rise 8 8000 1098 Sweet Project 9 592 1048 Comfy Chair 10 800 1101 The Red Door 2 10000 1080 The Dust Behind 3 18000 1058 The Gathering 3 250 1019 The White Heart 3 9300 1095 The Spirit 3 20000 1079 Carrying the Mail 4 8000 1093 Antelopes 5 12500 1110 Three Sisters 6 6500 1085 Traces 6 20000 1004 Seeking Shelter 6 52000 1016 Untitled 6 6000 1026 Untitled (couple) 7 4000 1057 Untitled 8 4500 1086 Untitled (desert landscape) 2 18000 1025 Profile of a Woman 3 625 1022 The Cowboy 3 4200 1104 Untitled 3 1800 1010 Untitled (land with adobe) 3 800 1111 Untitled (man and crucifix) 4 3200 1020 Untitled (Man holding coat) 5 3000 1012 Man on Horseback 6 8000 1097 Untitled (Sea) 6 2800 1066 Untitled (still life) 6 19500 1033 Untitled (Woman abstract) 6 2500 1061 Untitled Mural 7 3520 1071 Ride the Rapids 8 300

exam4Artists.txt:

1 Acconci 2 Budd 3 Carpenter 4 Dill 5 Edwards 6 Fleming 7 Garber 8 Higgins 9 Ibe 10 Kollasch

ArtMap.java:

import java.io.BufferedReader; import java.io.FileReader; import java.io.IOException; import java.util.Map; import java.util.TreeMap;

public class ArtMap { // map to store data Map artistMap;

public ArtMap(String fileName) throws IOException { // initialize the map artistMap = new TreeMap<>(); // read data using reader BufferedReader reader = new BufferedReader(new FileReader(fileName)); String line; // while file has lines while((line = reader.readLine()) != null) { // split token using one or more spaces String tokens[] = line.split("\t"); artistMap.put(Integer.parseInt(tokens[0]), Integer.parseInt(tokens[2])); } // close reader reader.close(); } /* * Method which returns name corresponding to id */ Integer getName(int id){ if(artistMap.containsKey(id)) return artistMap.get(id); return null; } }

Exam4Step1.java:

import java.io.IOException; import java.util.Scanner;

public class Exam4Step1 {

public static void main(String[] args) throws IOException { ArtMap artistMap = new ArtMap("C:/Users/patel/Desktop/JavaFiles/exam4arts.txt"); Scanner scanner = new Scanner(System.in); int id; // ask the name for the first time System.out.print("Please enter an Art ID(0 to quit) ==> "); id = scanner.nextInt(); // keep looping till user enters a id of 0 or less while(id > 0) { // get the ID from map Integer ID = artistMap.getName(id); if(ID == null) { System.out.println("Artist not found!"); //name = "Artist not found!"; } // print the name System.out.println("Artist = " + ID); // ask again for next input id System.out.print("Please enter an Art ID(0 to quit) ==> "); id = scanner.nextInt(); } /*while (id <= 0) { System.out.println("Bye!"); }*/ scanner.close(); }

}

MyArtistNodes.java:

import java.io.BufferedWriter; import java.io.File; import java.io.FileNotFoundException; import java.io.FileWriter; import java.io.IOException; import java.util.ArrayList; import java.util.LinkedList; import java.util.ListIterator; import java.util.Scanner;

public class MyArtistNodes implements java.lang.Comparable{

public ArrayList myArtistNodes = new ArrayList(); public ArrayList myArtNodes = new ArrayList(); ListIterator lr = myArtistNodes.listIterator(); public MyArtistNodes(String filename) { Scanner input; try { input = new Scanner(new File(filename)); myArtistNodes = new ArrayList(); while(input != null && input.hasNext()) { String line = input.nextLine(); String[] tokens = line.split("\t"); // System.out.println(tokens.length+" "+tokens[1]+" -- "+Integer.parseInt(tokens[0].trim())); ArtistNode newA = new ArtistNode(tokens[1],Integer.parseInt(tokens[0].trim())); myArtistNodes.add(newA); System.out.println(newA); while (lr.hasPrevious()){ //System.out.println("Aashiv"); System.out.println(lr.previous()); } } input.close(); } catch (NumberFormatException | FileNotFoundException e) { // TODO Auto-generated catch block e.printStackTrace(); } } public void print(String heading, String outFile) { //write to file BufferedWriter writer; try { writer = new BufferedWriter(new FileWriter(outFile)); writer.write(heading + " "); writer.write(System.getProperty("line.separator")); for(Artist a : myArtistNodes) { //writer.write(newA); writer.write(a.toString()+" "); writer.write(System.getProperty("line.separator")); } writer.flush(); writer.close(); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } }

public static int compareTo(ArrayList o1, ArrayList o2) { o2.get(0); o1.get(0); int compareValue = (Artist.getArtistID() - Artist.getArtistID()); return compareValue; } /** * Finds the artist with id and returns the array index */ public static int getArtist(ArrayList[] artistArtArray, int artistId) { for (int i = 0; i < artistArtArray.length; i++) { artistArtArray[i].get(0); if (Artist.getArtistID() == artistId) return i; }

return -1; } /* // write to console public void printList() { for(Artist a : myArtistNodes) { System.out.println(a.toString()); } } // write to console public void printList() { for(Art a : myArtNodes) { System.out.println(a.toString()); } } public void append() { } /*public int indexOfArtistID(int artistID) { int index; return index; }*/

@Override public int compareTo(Artist o) { // TODO Auto-generated method stub return 0; } }

Artist.java:

public class Artist implements java.lang.Comparable { // Instance variables private int artistID; // id of artist private String artistName; // name of artist private Art art;

/** * Constructor * * @param name * @param number */ Artist(String name, int number) { this.artistID = number; this.artistName = name; }

/** * Constructor * * @param artistID * @param artistName * @param art */ public Artist(int artistID, String artistName, Art art) { this.artistID = artistID; this.artistName = artistName; this.art = art; }

/** * return the artistName * * @return */ public String getArtistName() { return artistName; }

/** * set the artistName * * @param artistName */ public void setArtistName(String artistName) { this.artistName = artistName; }

/** * return the artistId * * @return */ public int getArtistID() { return artistID; }

/** * set the artistId * * @param artistId */ public void setArtistID(int artistId) { this.artistID = artistId; }

/** * @return the art */ public Art getArt() { return art; }

/** * @param art * the art to set */ public void setArt(Art art) { this.art = art; }

public int compareTo(Artist o) { return this.getArt().compareTo(o.getArt()); }

/** * toString method */ public String toString() { return String.format("%-9d %-20s", this.artistID, this.artistName); } }

ArtistNode.java: (Modify to remove errors)

public class ArtistNode extends Artist { private ArtNode firstNode; private ArtNode lastNode; int totalEntries; double totalValue; public ArtistNode(String artistName, int artistID) { super(artistName,artistID); this.firstNode = null; this.lastNode = null; totalEntries = 0; totalValue = 0; } public int getTotalEntries() { return totalEntries; }

/** * return the artistId * * @return */ public double getTotalValue() { return totalValue; }

public int compareTo(Artist o) { return this.getArt().compareTo(o.getArt()); }

/** * toString method */ public String toString() { return String.format(Artist.getArtistName() + " " + ArtistNode.getArtistID() + "\t, %-9d ,\t%-20s", this.totalEntries, this.totalValue); } }

Art.java:

public class Art implements java.lang.Comparable {

// Instance variables private int artID; private String artTitle; private int appraisedValue;

/** * Constructor * * @param artID * - art id * @param artTitle * - title of the art * @param appraisedValue * - value * public Art(int artID, String artTitle, int appraisedValue) { this.artID = artID; this.artTitle = artTitle; this.appraisedValue = appraisedValue; }

/** * @return the artID * public int getArtID() { return artID; }

/** * @return the artTitle * public String getArtTitle() { return artTitle; }

/** * @return the appraisedValue * public int getAppraisedValue() { return appraisedValue; }

/** * @param artID * the artID to set * public void setArtID(int artID) { this.artID = artID; }

/** * @param artTitle * the artTitle to set * public void setArtTitle(String artTitle) { this.artTitle = artTitle; }

/** * @param appraisedValue * the appraisedValue to set * public void setAppraisedValue(int appraisedValue) { this.appraisedValue = appraisedValue; } public int compareTo(Art o) { return (this.getArtID() - o.getArtID()); }

@Override public String toString() { return String.format("%-6d %-25s %d", artID, artTitle, appraisedValue); } }