Fixed plain Java instruction

Project-Provision.iml

@@ -8,6 +8,16 @@
     </content>
     <orderEntry type="inheritedJdk" />
     <orderEntry type="sourceFolder" forTests="false" />
+    <orderEntry type="module-library" exported="">
+        <library name="javax-json">
+            <CLASSES>
+                <root url="jar://$MODULE_DIR$/lib/javax.json-1.1.4.jar!/" />
+                <root url="jar://$MODULE_DIR$/lib/javax.json-api-1.1.4.jar!/" />
+            </CLASSES>
+            <JAVADOC />
+            <SOURCES />
+      </library>
+        </orderEntry>
     <orderEntry type="module-library" scope="TEST">
       <library name="JUnit5.4">
         <CLASSES>
@@ -25,4 +35,4 @@
       </library>
     </orderEntry>
   </component>
-</module>
+</module>

README.md

@@ -4,6 +4,9 @@ Author: Benny Leung
 J-WatchList is a simple stock market watch list tracker.
 
 ## Dependencies
+External libarary:
+- [javax.json]("https://docs.oracle.com/javaee/7/api/javax/json/Json.html")
+
 Build deps:
 - gradle
 
@@ -11,15 +14,27 @@ Build deps:
 ### .class
 In a terminal:
 ```
-git clone https://github.students.cs.ubc.ca/cpsc210-2019w-t1/project_h9u2b
+git clone https://git.leung.rocks/benny/J-WatchList.git
-cd project_h9u2b
+cd J-WatchList
-gradle clean build test checkstyleMain
+gradle clean build
 ```
 
 Class files are in build/classes, to run with plain java:
 ```
-cd project_h9u2b
+cd J-WatchList
-java -cp build/classes/java/main/:build/classes/java/main/ui ui.Iface
+java -cp build/classes/java/main/:build/classes/java/main/ui ui.Main
+```
+
+Or run with gradle:
+```
+cd J-WatchList
+gradle run
+```
+
+To debug:
+```
+cd J-WatchList
+gradle debug
 ```
 
 ## Tags
@@ -29,4 +44,3 @@ Rebuild tags with:
 ```
 gradle tags
 ```
-

build.gradle

@@ -2,6 +2,10 @@ apply plugin: 'java'
 apply plugin: 'checkstyle'
 
 dependencies {
+    /*
+    compile 'javax.json:javax.json-api:1.1.4'
+    compile 'org.glassfish:javax.json:1.1.4'
+    */
     compile fileTree(include: ['*.jar'], dir:'lib')
     testCompile fileTree(include: ['*.jar'], dir:'lib')
     testImplementation fileTree(include: ['*.jar'], dir:'lib')
@@ -14,6 +18,12 @@ checkstyle {
     configFile file('checkstyle.xml')
 }
 
+/*
+repositories {
+    mavenCentral()
+}
+*/
+
 sourceSets {
     main {
         java {
@@ -27,6 +37,9 @@ sourceSets {
         java {
             srcDir 'src/test'
         }
+        resources {
+            srcDir "src/resources"
+        }
     }
 }
 test {

src/main/data/DataSource.java

@@ -0,0 +1,71 @@
+package data;
+
+import java.util.Set;
+import java.util.Map;
+import java.util.HashMap;
+import java.util.Iterator;
+import java.util.Objects;
+import java.io.IOException;
+
+public abstract class DataSource {
+    protected HashMap<String, StockType> targets;
+    protected String name;
+    protected String url;
+    protected String apiKey;
+
+    public DataSource(String name, String url, String apiKey) {
+        this.targets = new HashMap<String, StockType>();
+        this.name = name;
+        this.url = url;
+        this.apiKey = apiKey;
+    }
+
+    //Effect: add target to this
+    // add this to target if not already done
+    //Modifies: this, stype
+    public void addStype(StockType stype) {
+        String sname = stype.getName();
+        if (!this.targets.containsKey(sname)) {
+            targets.put(sname,stype);
+            stype.addSource(this);
+        }
+    }
+
+    //Effect: del target to this
+    // del this to target if not already done
+    //Modifies: this, stype
+    public void delStype(StockType stype) {
+        String sname = stype.getName();
+        if (this.targets.containsKey(sname)) {
+            targets.remove(sname,stype);
+            stype.delSource(this);
+        }
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    @Override
+    public boolean equals(Object obj) {
+        if (obj == this) {
+            return true;
+        }
+        if (!(obj instanceof DataSource)) {
+            return false;
+        }
+        DataSource temp = (DataSource) obj;
+        if (temp.getName().equals(name)) {
+            return true;
+        }
+        return false;
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hash(name);
+    }
+
+    //Effect: returns updated data in the form: double[2], [0] is price, [1] is %change
+    public abstract double[] update(String stype, String idstring) throws IOException;
+}

src/main/data/ListOfWatchList.java

@@ -0,0 +1,36 @@
+package data;
+
+import java.util.ArrayList;
+
+//Singleton pattern from https://www.tutorialspoint.com/java/java_using_singleton.htm
+public class ListOfWatchList {
+    private static ListOfWatchList lowl = new ListOfWatchList();
+    private ArrayList<WatchList> wlists;
+
+    private ListOfWatchList() {
+        wlists = new ArrayList<WatchList>();
+    }
+
+    public static ListOfWatchList getList() {
+        return lowl;
+    }
+
+    //Effect: add a watchlist to this list, if it isn't already in the list
+    //Modifies: this
+    public void addWatchList(WatchList wlist) {
+        if (!(wlists.contains(wlist))) {
+            wlists.add(wlist);
+        }
+    }
+
+    //Effect: remove a watchlist
+    //Modifies: this
+    public void delWatchList(WatchList wlist) {
+        wlists.remove(wlist);
+    }
+
+    //Effect: return a watchlist by index
+    public WatchList getWatchList(int index) {
+        return (WatchList) wlists.get(index);
+    }
+}

src/main/data/Nasdaq.java

@@ -0,0 +1,11 @@
+package data;
+
+import java.util.*;
+import data.StockType;
+
+public class Nasdaq extends StockType {
+    public Nasdaq() {
+        super();
+        name = "NASDAQ";
+    }
+}

src/main/data/Nyse.java

@@ -1,28 +1,13 @@
 package data;
 
 import java.util.*;
+import data.StockType;
+import network.AlphaVantage;
 
-public class Nyse implements StockType {
+public class Nyse extends StockType {
-    private static final String NAME = "NYSE";
-    private HashSet sources;
-
     public Nyse() {
-        sources = new HashSet();
+        super();
-    }
+        name = "NYSE";
-
+        addSource(new AlphaVantage());
-    @Override
-    public float[] update(String idstring) {
-        Iterator iterator = sources.iterator();
-        float[] result = new float[2];
-        while (iterator.hasNext()) {
-            //XXX
-            //DataSource source = (DataSource)iterator.next();
-        }
-        return result;
-    }
-
-    @Override
-    public String getName() {
-        return this.NAME;
     }
 }

src/main/data/Options.java

@@ -1,75 +0,0 @@
-package data;
-
-import java.util.prefs.Preferences;
-import data.Const;
-
-public class Options {
-    private Preferences store;
-    private boolean wasEmpty;
-    private static final String DEF_OPTS_PATH = "";
-
-    public Options() {
-        //store = Preferences.userRoot();
-        //wasEmpty = store.nodeExists(Const.PROGRAM_NAME);
-        //store = store.node(Const.PROGRAM_NAME);
-        //if (wasEmpty) {
-        //    //load default opts from resource
-        //    importDefPreferences();
-        //}
-    }
-
-    public Options(String pathname) {
-        store = Preferences.userRoot().node(pathname);
-    }
-
-    public Options getSection(String section) {
-        //String path = Const.PROGRAM_NAME + "/" + section;
-        //Options result = new Options(path);
-        //return result;
-	return null;
-    }
-
-    public void imoprtPreferences(String xmlpath) {
-        //XXX
-        System.out.println("Loaded preference from: " 
-                            + xmlpath);
-    }
-
-    public void imoprtDefPreferences(String xmlpath) {
-        //XXX
-        System.out.println("Loaded default preference: ");
-    }
-
-    public void exportPreferences(String xmlpath) {
-        //XXX
-        System.out.println("Exported preference from: " 
-                            + xmlpath);
-    }
-
-    public void destroy() {
-        //XXX
-        // Clear config if requested or config was empty
-        // and is not saving
-        //if ((getBool(EMPTY) && getBool(NO_SAVE))
-        //    || getBool(CLEAR)) {
-        //    this.store.clear();
-        //    }
-    }
-
-    // Default all false bool pref to be safe
-    // Default should be imported by constructor regardless
-    public boolean getBool(String key) {
-        return this.store.getBoolean(key, false);
-    }
-
-    // Default all empty string pref to be safe
-    // Default should be imported by constructor regardless
-    public String getString(String key) {
-        return this.store.get(key, "");
-    }
-
-    public void parseArgs(String[] args) {
-        //XXX
-    }
-
-}

src/main/data/StockEntry.java

@@ -1,20 +1,41 @@
 package data;
 
+import java.util.Objects;
+import java.io.IOException;
+
 public class StockEntry {
     private String identifier;
     private StockType stype;
-    private float price;
+    private double price;
-    private float change;
+    private double change;
+    private boolean updating = false;
 
     public StockEntry(StockType stype, String idstring) {
         identifier = idstring;
         this.stype = stype;
     }
 
-    public void update() {
+    //Effect: return true if price or change is/are new
-        float[] result = this.stype.update(this.identifier);
+    // update the price and %change by the stype update
+    //Modifies: this
+    public boolean update() {
+        boolean changed = false;
+        updating = true;
+        double[] result;
+        try {
+            result = this.stype.update(this.identifier);
+        } catch (IOException e) {
+            System.out.println("Error getting update");
+            e.printStackTrace();
+            return false;
+        }
+        if ((result[0] != price) || (result[1] != change)) {
+            changed = true;
+        }
         this.price = result[0];
         this.change = result[1];
+        updating = false;
+        return changed;
     }
 
     public String getTypeName() {
@@ -24,4 +45,37 @@ public class StockEntry {
     public String getID() {
         return this.identifier;
     }
+
+    public double getPrice() {
+        return price;
+    }
+    
+    public double getChange() {
+        return change;
+    }
+
+    public boolean isUpdating() {
+        return updating;
+    }
+
+    @Override
+    public boolean equals(Object obj) {
+        if (obj == this) {
+            return true;
+        }
+        if (!(obj instanceof StockEntry)) {
+            return false;
+        }
+        StockEntry tmp = (StockEntry) obj;
+        if (tmp.getID().equals(identifier)
+            	&& tmp.getTypeName().equals(stype.getName())) {
+            return true;
+        }
+        return false;
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hash(identifier, stype.getName());
+    }
 }

src/main/data/StockType.java

@@ -1,14 +1,71 @@
 package data;
 
 import java.util.*;
+import java.io.IOException;
+
+public abstract class StockType {
+    protected String name;
+    protected HashSet<DataSource> sources;
+
+    // Sources is empty
+    public StockType() {
+        sources = new HashSet<DataSource>();
+    }
 
-public interface StockType {
     //Effects: return current price[0] and %change[1] 
     //				(2 element array)
     //Require: working sources
-    public float[] update(String idstring);
+    public double[] update(String idstring) throws IOException {
+        double[] result = {0.0, 0.0};
+        for (DataSource source : sources) {
+            double[] sourceRes = source.update(name, idstring);
+            result[0] += sourceRes[0];
+            result[1] += sourceRes[1];
+        }
+        result[0] /= sources.size();
+        result[1] /= sources.size();
+        return result;
+    }
+
+    //Effects: add source to this
+    // add this to source, if not already added
+    //Modifies: this, source
+    public void addSource(DataSource source) {
+        if (!this.sources.contains(source)) {
+            this.sources.add(source);
+            source.addStype(this);
+        }
+    }
+
+    //Effects: add source to this
+    // add this to source, if not already added
+    //Modifies: this, source
+    public void delSource(DataSource source) {
+        if (this.sources.contains(source)) {
+            this.sources.remove(source);
+            source.delStype(this);
+        }
+    }
 
     //Effects: return name of type
-    //Require: working sources
+    public String getName() {
-    public String getName();
+        return this.name;
+    }
+
+    @Override
+    public boolean equals(Object obj) {
+        if (obj == this) {
+            return true;
+        }
+        if (!(obj instanceof StockType)) {
+            return false;
+        }
+        StockType sobj = (StockType) obj;
+        return this.name.equals(sobj.getName());
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hash(name);
+    }
 }

src/main/data/StypeMap.java

@@ -6,30 +6,49 @@ import java.util.HashMap;
 import java.util.Iterator;
 import data.StockType;
 import data.Nyse;
-//import data.Nasdaq;
+import data.Nasdaq;
 //import data.Jpx;
 //import data.Sse;
 //import data.Hkse;
 
 //Contains one instance of all supported
 //StockType
+//Singleton from https://www.tutorialspoint.com/java/java_using_singleton.htm
 public class StypeMap {
-    private HashMap<String, StockType> smap;
+    private static HashMap<String, StockType> smap;
+    private static StypeMap stypemap = new StypeMap();
 
     // Effects:  smap is initialized 
     //          with supported StockType
-    public StypeMap() {
+    private StypeMap() {
         smap = new HashMap<String, StockType>();
-        smap.put("Nyse", new Nyse());
+        addStype(new Nyse());
-        //smap.put("Nasdaq", new Nasdaq());
+        addStype(new Nasdaq());
-        //smap.put("Jpx", new Jpx());
+        //addStype(new Jpx());
-        //smap.put("Sse", new Sse());
+        //addStype(new Sse());
-        //smap.put("Hkse", new Hkse());
+        //addStype(new Hkse());
     }
 
     // Effects: Returns the StockType
     // Require: Valid typeString
-    public StockType getStype(String typeString) {
+    // note: this is a shortcut to getMap and then getInstStype
-        return smap.get(typeString);
+    public static StockType getStype(String typeString) {
+        return stypemap.getInstStype(typeString);
+    }
+
+    private void addStype(StockType stype) {
+        smap.put(stype.getName(), stype);
+    }
+
+    protected StockType getInstStype(String typeString) {
+        return this.smap.get(typeString);
+    }
+
+    public static StypeMap getMap() {
+        return stypemap;
+    }
+
+    protected HashMap getHMap() {
+        return smap;
     }
 }

src/main/data/WatchList.java

@@ -4,42 +4,55 @@ import java.util.*;
 import java.io.*;
 import data.StockEntry;
 import ui.Main;
+import data.exceptions.*;
+import java.util.Observable;
 
-public class WatchList implements Load,Save {
+public class WatchList extends Observable implements Load,Save {
     private LinkedHashMap<String, StockEntry> listdata;
-    private Main mainObj;
     public static final String DEFAULT_SAVEFILE = ".jwatch.list";
 
+    public enum Etype {
+        UPDATE, ADD, DEL
+    }
+
     // Effects: List is empty
     //  or loaded with save values
-    public WatchList(Main mainObj) {
+    public WatchList() {
         listdata = new LinkedHashMap<String, StockEntry>();
-        this.mainObj = mainObj;
         if (fileExists(DEFAULT_SAVEFILE)) {
             load("");
         }
-    }
+        ListOfWatchList.getList().addWatchList(this);
-
-    // Debug constructor
-    public WatchList(Main mainObj, boolean debug) {
-        listdata = new LinkedHashMap<String, StockEntry>();
-        this.mainObj = mainObj;
     }
 
     // Effects: Add an entry with key==target
     // (XXX For now, only Nyse)
     // Modifies: this.listdata
     // Requires: target doesn't already exists
-    public void addStock(String target, StockType stype) {
+    public void addStock(String target) {
         //The only implementation yet
+        StockType stype = StypeMap.getStype("NYSE");
         this.listdata.put(target, new StockEntry(stype, target));
+        setChanged();
+        notifyObservers(new Wevent(Etype.ADD, size()));
     }
 
     // Effects: Delete an entry with key==target
     // Modifies: this.listdata
     // Requires: target exists in list
-    public void delStock(String target) {
+    public void delStock(String target) throws StockNotExistsException {
+        if (!listdata.containsKey(target)) {
+            throw new StockNotExistsException();
+        }
+        int index = new ArrayList(listdata.keySet()).indexOf(target);
         this.listdata.remove(target);
+        setChanged();
+        notifyObservers(new Wevent(Etype.DEL, index));
+    }
+
+    // Effects: return an array of all Stock names in list
+    public String[] getNames() {
+        return listdata.keySet().toArray(new String[0]);
     }
 
     // Effects: Return an iterator of the list
@@ -48,12 +61,19 @@ public class WatchList implements Load,Save {
         Set entryset = listdata.entrySet();
         return entryset.iterator();
     }
-    
+
+    //Effects: return a stockentry given its index
+    public StockEntry getStock(int index) {
+        String key = (String) listdata.keySet().toArray()[index];
+        return (StockEntry) listdata.get(key);
+    }
+
     // Effects: Return the size of list
     public int size() {
         return listdata.size();
     }
 
+    //Effect: save list to a file, save to DEFAULT_SAVEFILE if filename is empty
     @Override
     public void save(String filename) {
         if (filename.equals("")) {
@@ -66,7 +86,7 @@ public class WatchList implements Load,Save {
             while (iterate.hasNext()) {
                 Map.Entry entry = (Map.Entry)iterate.next();
                 String outString = (String)entry.getKey();
-		System.out.println("Exported: " + outString);
+                System.out.println("Exported: " + outString);
                 bwriter.write(outString);
                 bwriter.newLine();
             }
@@ -76,12 +96,15 @@ public class WatchList implements Load,Save {
         }
     }
 
+    //Effect: return true if filename exists and is a file
     @Override
     public boolean fileExists(String filename) {
         File fileObj = new File(filename);
         return fileObj.isFile();
     }
 
+    //Effect: load list from file, load from DEFAULT_SAVEFILE if filename is empty
+    //Modifies: this
     @Override
     public void load(String filename) {
         if (filename.equals("")) {
@@ -92,7 +115,7 @@ public class WatchList implements Load,Save {
             FileReader freader = new FileReader(filename);
             BufferedReader breader = new BufferedReader(freader);
             while ((sss = breader.readLine()) != null) {
-                mainObj.addWatchStock(sss);
+                addStock(sss);
                 System.out.println("Imported: " + sss);
             }
             breader.close();
@@ -102,4 +125,43 @@ public class WatchList implements Load,Save {
             System.out.println("IO Error when reading: " + filename);
         }
     }
+
+    //Effect: perform price and %update for @ stockentry in list
+    //Modifies: this, stockentries
+    public void updateList() {
+        Iterator watchit = iterator();
+        boolean changed = false;
+        while (watchit.hasNext()) {
+            Map.Entry entry = (Map.Entry)watchit.next();
+            StockEntry sentry = (StockEntry)entry.getValue();
+            if (!changed) {
+                changed = changed || sentry.update();
+            }
+            sentry.update();
+        }
+        setChanged();
+        notifyObservers(new Wevent(Etype.UPDATE));
+    }
+
+    public class Wevent {
+        private Etype type;
+        private int data;
+
+        public Wevent(Etype type) {
+            this(type, 0);
+        }
+
+        public Wevent(Etype type, int num) {
+            this.type = type;
+            this.data = num;
+        }
+
+        public Etype getType() {
+            return type;
+        }
+
+        public int getData() {
+            return data;
+        }
+    }
 }

src/main/data/exceptions/StockNotExistsException.java

@@ -0,0 +1,6 @@
+package data.exceptions;
+
+import data.exceptions.WatchListExceptions;
+
+public class StockNotExistsException extends WatchListExceptions {
+}

src/main/data/exceptions/WatchListExceptions.java

@@ -0,0 +1,4 @@
+package data.exceptions;
+
+public abstract class WatchListExceptions extends Exception {
+}

src/main/network/AlphaVantage.java

@@ -0,0 +1,41 @@
+package network;
+
+import data.StypeMap;
+import java.io.IOException;
+import javax.json.JsonObject;
+import data.DataSource;
+import network.exceptions.*;
+
+public class AlphaVantage extends DataSource {
+
+    public AlphaVantage() {
+        super("AlphaVantage", "https://www.alphavantage.co/query", "4MC2LL0HOQ2TFQL1");
+    }
+
+    //Effect: get intraday price and %change through JSON given the stock ticker
+    @Override
+    public double[] update(String stype, String idstring) throws IOException {
+        double[] result = {0.0, 0.0};
+        try {
+            String urlString = Net.urlStringBuilder(url, "function", "TIME_SERIES_INTRADAY", "symbol", idstring,
+                    "interval", "5min",
+                    "apikey", apiKey);
+            JsonObject response = StockJson.urlToJson(urlString);
+            JsonObject preJson = StockJson.jsonInJson(response, "Time Series (5min)");
+            if (preJson == null) {
+                throw new IOException("Error getting data from " + name);
+            }
+            JsonObject mainJson = StockJson.timeSeriesElement(preJson, 0);
+            //System.out.print(mainJson);
+            result[0] = Double.parseDouble(StockJson.stringGetter(mainJson, "4. close"));
+            Double open = Double.parseDouble(StockJson.stringGetter(mainJson, "1. open"));
+            result[1] = (result[0] - open) / open;
+        } catch (ParaMismatchException e) {
+            e.printStackTrace();
+        } //catch (IOException e) {
+           // System.out.println("Error getting data from: " + name);
+            //e.printStackTrace();
+        //}
+        return result;
+    }
+}

src/main/network/Net.java

@@ -0,0 +1,43 @@
+package network;
+
+import java.io.InputStream;
+import java.net.URL;
+import java.net.URLConnection;
+import java.net.URLEncoder;
+import java.io.IOException;
+import java.io.UnsupportedEncodingException;
+import network.exceptions.*;
+
+//Ref: https://stackoverflow.com/questions/2793150/how-to-use-java-net-urlconnection-to-fire-and-handle-http-requests
+public class Net {
+    //Effect: returns a String of url built with given url and paras
+    public static String urlStringBuilder(String url, String... paras) throws ParaMismatchException {
+        String urlString = url;
+        String charset = "UTF-8";
+        if ((paras.length % 2) != 0) {
+            throw new ParaMismatchException("Except even paras, but have " + paras.length);
+        }
+        if (paras.length != 0) {
+            urlString += "?";
+            try {
+                for (int i = 0; i < paras.length - 3; i = i + 2) {
+                    urlString += paras[i] + "=" + URLEncoder.encode(paras[i + 1], charset) + "&";
+                }
+                urlString += paras[paras.length - 2] + "=" + URLEncoder.encode(paras[paras.length - 1], charset);
+            } catch (UnsupportedEncodingException e) {
+                System.out.println("Error during encoding url: Unsupported encoding");
+                e.printStackTrace();
+            }
+        }
+        return urlString;
+    }
+
+    //Effect: Open connection, fires a http GET and returns the InputStream of result
+    public static InputStream urlToInputStream(String url) throws IOException {
+        try {
+            return (new URL(url).openStream());
+        } catch (IOException e) {
+            throw e;
+        }
+    }
+}

src/main/network/StockJson.java

@@ -0,0 +1,57 @@
+package network;
+
+import javax.json.Json;
+import javax.json.JsonObject;
+import javax.json.JsonReader;
+import javax.json.JsonNumber;
+import javax.json.JsonArray;
+import javax.json.JsonValue;
+import java.io.InputStream;
+import java.io.IOException;
+import java.util.Iterator;
+
+//Json library from https://docs.oracle.com/javaee/7/api/javax/json/Json.html
+public class StockJson {
+    public static JsonObject inputStreamToJson(InputStream istream) {
+        JsonReader jreader = Json.createReader(istream);
+        JsonObject jobj = jreader.readObject();
+        jreader.close();
+        return jobj;
+    }
+
+    public static JsonObject urlToJson(String url) throws IOException {
+        try {
+            return inputStreamToJson(Net.urlToInputStream(url));
+        } catch (IOException e) {
+            throw e;
+        }
+    }
+
+    // Effect: return double from jsonnumber
+    public static double doubleGetter(JsonObject jobj, String name) {
+        return jobj.getJsonNumber(name).doubleValue();
+    }
+
+    // Effect: return jsonobject from jsonobject
+    public static JsonObject jsonInJson(JsonObject jobj, String name) {
+        return jobj.getJsonObject(name);
+    }
+
+    // Effect: return string from jsonstring
+    public static String stringGetter(JsonObject jobj, String name) {
+        return jobj.getString(name);
+    }
+
+    // Effect: return double from percentage string
+    public static double doublePercent(JsonObject jobj, String name) {
+        String temp = stringGetter(jobj, name);
+        return Double.parseDouble(temp.split("%")[0]);
+    }
+
+    // From https://stackoverflow.com/questions/33531041/jsonobject-get-value-of-first-node-regardless-of-name
+    // Effect: extract the jsonobject from jsonobject by index
+    public static JsonObject timeSeriesElement(JsonObject jobj, int index) {
+        String name = (String) jobj.keySet().toArray()[index];
+        return jsonInJson(jobj, name);
+    }
+}

src/main/network/exceptions/ParaMismatchException.java

@@ -0,0 +1,7 @@
+package network.exceptions;
+
+public class ParaMismatchException extends Exception {
+    public ParaMismatchException(String sss) {
+        super(sss);
+    }
+}

src/main/ui/Gui.java

@@ -1,18 +1,83 @@
 package ui;
 
-import javax.swing.*;
+import javax.swing.SwingUtilities;
+import javax.swing.JFrame;
+import javax.swing.JComponent;
+import javax.swing.JButton;
+import javax.swing.GroupLayout;
+import java.awt.Container;
+import java.awt.LayoutManager;
+import ui.guicomp.*;
+import data.WatchList;
+import data.ListOfWatchList;
+import static data.Const.PROGRAM_NAME;
+import javax.swing.GroupLayout.Alignment;
 
-public class Gui {
+// based on http://zetcode.com/tutorials/javaswingtutorial/firstprograms/
-    //public Gui() {
+public class Gui extends JFrame implements Iface {
-    //    JLabel label = new JLabel("Hello World");
+    private JButton addButton;
+    private JButton delButton;
+    private JButton upButton;
+    private WatchTablePane wtable;
+    private WatchList wlist;
+    private Runnable init = new Runnable() {
+        //Effect: Init gui all components 
+        //Modifies: this
+        public void run() {
+            addComponents();
+            createLayout();
+            setTitle(PROGRAM_NAME);
+            setSize(300, 200);
+            setLocationRelativeTo(null);
+            setDefaultCloseOperation(EXIT_ON_CLOSE);
+        }
 
-    //    JFrame.setDefaultLookAndFeelDecorated(true);
+        private void addComponents() {
-    //    JFrame f = new JFrame("Hello World");
+            addButton = new AddButt(wlist);
-    //    f.setSize(300,150);
+            delButton = new DelButt(wlist);
-    //    f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
+            upButton = new UpButt(wlist);
+            wtable = new WatchTablePane(wlist);
+        }
 
-    //    f.add(label);
+        private void createLayout() {
+            Container pane = getContentPane();
+            GroupLayout lman = new GroupLayout(pane);
+            pane.setLayout(lman);
+            lman.setAutoCreateContainerGaps(true);
+            lman.setHorizontalGroup(lman.createParallelGroup(GroupLayout.Alignment.CENTER)
+                    .addComponent(wtable.getPane())
+                    .addGroup(lman.createSequentialGroup()
+                            .addComponent(addButton)
+                            .addComponent(delButton)
+                            .addComponent(upButton)
+                        ));
+            lman.setVerticalGroup(lman.createSequentialGroup()
+                    .addComponent(wtable.getPane())
+                    .addGroup(lman.createParallelGroup(GroupLayout.Alignment.CENTER)
+                        .addComponent(addButton)
+                        .addComponent(delButton)
+                        .addComponent(upButton)
+                        ));
+        }
+    };
 
-    //    f.setVisible(true);
+    public Gui() {
-    //}
+        wlist = ListOfWatchList.getList().getWatchList(0);
+        SwingUtilities.invokeLater(init);
+        setVisible(true);
+    }
+
+    //Effect: nothing
+    //not enough time to do something useful for this
+    @Override
+    public void redraw() {
+        //Nothing for now
+    }
+
+    //Effect: nothing
+    //not enough time to do something useful for this
+    @Override
+    public void destory() {
+        //Nothing for now
+    }
 }

src/main/ui/Iface.java

@@ -1,7 +1,5 @@
 package ui;
 
-import data.Options;
-
 public interface Iface {
     //private Options ifaceOpts;
 

src/main/ui/IfaceFactory.java

@@ -1,17 +1,13 @@
 package ui;
 
-import data.Options;
 import ui.Tui;
 
 public class IfaceFactory {
     // Produce Iface given the config
-    public static Iface getIface(Main mainobj) {
+    public static Iface getIface() {
         //uses Tui for now
-        return new Tui(mainobj);
+        //return new Tui();
+	//Test Gui
+	return new Gui();
     }
-    //public static Iface getIface(Options iOpts) {
-    //    //XXX iOpts not ready
-    //    //uses Tui for now
-    //    return new Tui(iOpts);
-    //}
 }

src/main/ui/Main.java

@@ -1,70 +1,23 @@
 package ui;
 
 import data.Const;
-import data.Options;
 import data.StypeMap;
 import data.StockType;
 import data.WatchList;
 import ui.IfaceFactory;
+import data.exceptions.*;
 
 public class Main {
     private Iface iface;
-    private Options allOptions;
-    private WatchList mainList;
-    private StypeMap stypeMap;
 
     //Constructor, not the java main
     public Main(String[] args) {
-        //init options, it will load defaults
+        WatchList mainList = new WatchList();
-        //from resource xml
+        iface = IfaceFactory.getIface();
-        allOptions = new Options();
-        //parse args, uses 
-        allOptions.parseArgs(args);
-        stypeMap = new StypeMap();
-        mainList = new WatchList(this);
-        //initalize UI thread, options not ready
-        //this.Iface = IfaceFactory.getIface(allOptions.getSection("ui"));
-        iface = IfaceFactory.getIface(this);
-    }
-    
-    //Constructor for testing
-    public Main(boolean debug) {
-        //init options, it will load defaults
-        //from resource xml
-        allOptions = new Options();
-        stypeMap = new StypeMap();
-        mainList = new WatchList(this, true);
     }
 
     // java main
     public static void main(String[] args) {
         new Main(args);
     }
-
-    public WatchList getWatchList() {
-        //XXX volatile, threaded consideration
-        //instant/cached?
-        return this.mainList;
-    }
-
-    // Consider moving all to watchlist
-    public void addWatchStock(String target) {
-        //XXX Concurrency not ready
-        // Should add runnable to executor
-        // nyse only for now
-        StockType stype = this.stypeMap.getStype("Nyse");
-        mainList.addStock(target, stype);
-    }
-
-    // Consider moving all to watchlist
-    public void delWatchStock(String target) {
-        //XXX Concurrency not ready
-        // Should add runnable to executor
-        mainList.delStock(target);
-    }
-
-    // Consider moving all to watchlist
-    public void saveWatch(String file) {
-        mainList.save(file);    
-    }
 }

src/main/ui/Tui.java

@@ -7,25 +7,29 @@ import ui.Main;
 import data.Const;
 import data.WatchList;
 import data.StockEntry;
+import data.ListOfWatchList;
+import data.exceptions.*;
+import java.util.Observer;
+import java.util.Observable;
 
-
+public class Tui implements Iface, Observer {
-public class Tui implements Iface {
     private static final String SAVE_CURSOR = "\u001b[s";
     private static final String RESTORE_CURSOR = "\u001b[s";
     private static final String REQUEST_CURSOR = "\u001b[6n";
     private int maxrow;
     private int maxcol;
     private BufferedReader stdin;
-    private Main main;
 
-    public Tui(Main main) {
+    public Tui() {
         stdin = new BufferedReader(new InputStreamReader(System.in));
         getMax();
-        this.main = main;
+        WatchList watch = ListOfWatchList.getList().getWatchList(0); 
+        watch.addObserver(this);
         //XXX Start ui thread
         demo();
     }
 
+    //Effect: wait for user input and get a line (pressed Enter)
     public String getInputLine() {
         String result;
         try {
@@ -42,6 +46,8 @@ public class Tui implements Iface {
         return "";
     }
 
+    //Effect: capture user input, constantly
+    //Unused, for future dev uses
     public String readUntil(char end) {
         String result = "";
         char c;
@@ -85,31 +91,36 @@ public class Tui implements Iface {
         maxcol = maxCoord[1];
     }
 
+    //Effect: nothing has to be done
     @Override
     public void destory() {
         //Nothing has to be done
         return;
     }
 
+    //Effect: nothing
+    //will be used when Tui is redesigned
     @Override
     public void redraw() {
         //XXX Do nothing for now
         return;
     }
 
+    //Effect: Show a menu of functions
     public void demomenu() {
         System.out.println("Function select:");
-        System.out.println("1: View watchlist");
+        System.out.println("1: Update watchlist");
         System.out.println("2: Add stock");
         System.out.println("3: Remove stock");
         System.out.println("q: Quit");
         System.out.println("Enter a number or q, then press enter.\n");
     }
 
+    //Effect: execute functions basing on user input from menu
     public boolean demoinput() {
         switch (getInputLine()) {
             case "1":
-                printWatchList();
+                updateWatch();
                 break;
             case "2":
                 addWatch();
@@ -126,6 +137,7 @@ public class Tui implements Iface {
         return true;
     }
 
+    //Effect: main loop of program, displays menu, get input and execute functions
     public void demo() {
         System.out.println(" Welcome to " + Const.PROGRAM_NAME + "!");
         boolean cont = true;
@@ -133,35 +145,55 @@ public class Tui implements Iface {
             demomenu();
             cont = demoinput();
         }
-        saveWatch();
+        WatchList watch = ListOfWatchList.getList().getWatchList(0); 
+        watch.save("");
         System.out.println("Thank you for using " + Const.PROGRAM_NAME + "!");
     }
 
 
-    public void printWatchList() {
+    private void updateWatch() {
-        WatchList watch = main.getWatchList();
+        WatchList watch = ListOfWatchList.getList().getWatchList(0); 
+    	watch.updateList();
+    }
+
+    private void printWatchList() {
+        WatchList watch = ListOfWatchList.getList().getWatchList(0); 
         Iterator watchit = watch.iterator();
         while (watchit.hasNext()) {
             Map.Entry entry = (Map.Entry)watchit.next();
             StockEntry sentry = (StockEntry)entry.getValue();
-            System.out.println("Type: " + sentry.getTypeName() 
+            System.out.println("Type: " + sentry.getTypeName() + "\t"
-                    + " Identifier: " + sentry.getID());
+                    + "Identifier: " + sentry.getID() + "\t" 
+		    + "Price: " + sentry.getPrice() + "\t"
+		    + "Change %" + sentry.getChange());
         }
     }
 
-    public void addWatch() {
+    private void addWatch() {
         System.out.print("Enter your stock number and press enter: ");
         String userin = getInputLine();
-        main.addWatchStock(userin);
+        WatchList watch = ListOfWatchList.getList().getWatchList(0); 
+        watch.addStock(userin);
     }
 
-    public void delWatch() {
+    private void delWatch() {
+        boolean success = false;
         System.out.print("Enter your stock number and press enter: ");
         String userin = getInputLine();
-        main.delWatchStock(userin);
+        WatchList watch = ListOfWatchList.getList().getWatchList(0); 
+        try {
+            watch.delStock(userin);
+            success = true;
+        } catch (StockNotExistsException e) {
+            System.out.println("Stock: " + userin + " doesn't exists");
+        } finally {
+            System.out.println(success ? "Deleted: " + userin : "Failed to delete: " + userin);
+        }
     }
 
-    public void saveWatch() {
+    //Effect: reprint the list when the list is updated, or if stocks are added or deleted
-        main.saveWatch("");
+    @Override
+    public void update(Observable obsed, Object event) {
+        printWatchList();
     }
 }

src/main/ui/guicomp/AddButt.java

@@ -0,0 +1,37 @@
+package ui.guicomp;
+
+import javax.swing.JButton;
+import java.awt.event.ActionListener;
+import java.awt.event.ActionEvent;
+import javax.swing.JOptionPane;
+import data.WatchList;
+
+public class AddButt extends JButton {
+    private WatchList wlist;
+
+    public AddButt(WatchList wlist) {
+        super("Add Stock...");
+        //https://coderanch.com/t/580497/java/JButton-clicked-action
+        if (getActionListeners().length < 1) {
+            addActionListener(new AddButtList());
+        }
+        this.wlist = wlist;
+    }
+
+    private class AddButtList implements ActionListener {
+        public void actionPerformed(ActionEvent e) {
+            //https://docs.oracle.com/javase/tutorial/uiswing/components/dialog.html#input
+            //https://docs.oracle.com/javase/7/docs/api/javax/swing/JOptionPane.html
+            String userin = (String)JOptionPane.showInputDialog("Enter the identifier:");
+            if ((userin != null) && (userin.length() > 0)) {
+                new Thread(new Runnable() {
+                    @Override
+                    public void run() {
+                        wlist.addStock(userin);
+                        wlist.updateList();
+                    }
+                }).start();
+            }
+        }
+    }
+}

src/main/ui/guicomp/DelButt.java

@@ -0,0 +1,45 @@
+package ui.guicomp;
+
+import javax.swing.JButton;
+import java.awt.event.ActionListener;
+import java.awt.event.ActionEvent;
+import javax.swing.JOptionPane;
+import data.WatchList;
+import data.exceptions.StockNotExistsException;
+
+public class DelButt extends JButton {
+    private WatchList wlist;
+
+    public DelButt(WatchList wlist) {
+        super("Remove Stock...");
+        if (getActionListeners().length < 1) {
+            addActionListener(new DelButtList());
+        }
+        this.wlist = wlist;
+    }
+
+    private class DelButtList implements ActionListener {
+        public void actionPerformed(ActionEvent e) {
+            //https://docs.oracle.com/javase/tutorial/uiswing/components/dialog.html#input
+            //https://docs.oracle.com/javase/7/docs/api/javax/swing/JOptionPane.html
+            String[] names = wlist.getNames();
+            String userin = (String)JOptionPane.showInputDialog(
+                    null, "Choose a stock to delete:", "Delete Stock",
+                    JOptionPane.PLAIN_MESSAGE, null, names, null);
+            if ((userin != null) && (userin.length() > 0)) {
+                //https://stackoverflow.com/questions/12771500/best-way-of-creating-and-using-an-anonymous-runnable-class
+                new Thread(new Runnable() {
+                    @Override
+                    public void run() {
+                        try {
+                            wlist.delStock(userin);
+                        } catch (StockNotExistsException e) {
+                            //impossible
+                            e.printStackTrace();
+                        }
+                    }
+                }).start();
+            }
+        }
+    }
+}

src/main/ui/guicomp/UpButt.java

@@ -0,0 +1,29 @@
+package ui.guicomp;
+
+import javax.swing.JButton;
+import java.awt.event.ActionListener;
+import java.awt.event.ActionEvent;
+import data.WatchList;
+
+public class UpButt extends JButton {
+    private WatchList wlist;
+
+    public UpButt(WatchList wlist) {
+        super("Update");
+        if (getActionListeners().length < 1) {
+            addActionListener(new UpButtList());
+        }
+        this.wlist = wlist;
+    }
+
+    private class UpButtList implements ActionListener {
+        public void actionPerformed(ActionEvent e) {
+            new Thread(new Runnable() {
+                @Override
+                public void run() {
+                    wlist.updateList();
+                }
+            }).start();
+        }
+    }
+}

src/main/ui/guicomp/WatchTableModel.java

@@ -0,0 +1,80 @@
+package ui.guicomp;
+
+import javax.swing.table.AbstractTableModel;
+import javax.swing.table.TableModel;
+import javax.swing.event.*;
+import data.WatchList;
+import data.WatchList.Wevent;
+import data.StockEntry;
+import java.util.Observer;
+import java.util.Observable;
+import javax.swing.SwingUtilities;
+
+// Ref: https://docs.oracle.com/javase/tutorial/uiswing/components/table.html
+// Ref2: https://docs.oracle.com/javase/8/docs/api/javax/swing/table/AbstractTableModel.html
+public class WatchTableModel extends AbstractTableModel implements Observer {
+    private final String[] colnames = {"Identifier", "Price", "% change", "Status"};
+    private final Object[] example = {"asdf", 0.0, "asdf", "asdf"}; 
+    private WatchList watch;
+
+    public WatchTableModel(WatchList wlist) {
+        watch = wlist;
+        watch.addObserver(this);
+    }
+
+    public int getColumnCount() {
+        return colnames.length;
+    }
+
+    public int getRowCount() {
+        return watch.size();
+    }
+
+    public String getColumnName(int num) {
+        return colnames[num];
+    }
+
+    //Effect: return generated table data for whatever asked
+    public Object getValueAt(int stock, int field) {
+        StockEntry entry = watch.getStock(stock);
+        switch (field) {
+            case 0: //Name
+                return entry.getID();
+            case 1: //Price
+                return entry.getPrice();
+            case 2: //% change
+                return entry.getChange() + " %";
+            case 3:
+                return entry.isUpdating() ? "Updating" : "Ok";
+            default:
+                return false;
+        }
+    }
+
+    public Class getColumnClass(int col) {
+        return example[col].getClass();
+    }
+
+    //Effect: updates table for different events, ran by event dispatch thread as recommanded
+    //Modifies: Table displayed
+    @Override
+    public void update(Observable obsed, Object event) {
+        Wevent weve = (Wevent) event;
+        switch (weve.getType()) {
+            case UPDATE:
+                SwingUtilities.invokeLater(() -> {
+                    fireTableDataChanged(); });
+                break;
+            case ADD:
+                SwingUtilities.invokeLater(() -> {
+                    fireTableRowsInserted(weve.getData(), weve.getData()); });
+                break;
+            case DEL:
+                SwingUtilities.invokeLater(() -> {
+                    fireTableRowsDeleted(weve.getData(), weve.getData()); });
+                break;
+            default:
+                break;
+        }
+    }
+}

src/main/ui/guicomp/WatchTablePane.java

@@ -0,0 +1,23 @@
+package ui.guicomp;
+
+import javax.swing.JTable;
+import javax.swing.JScrollPane;
+import javax.swing.table.TableModel;
+import data.WatchList;
+
+//https://docs.oracle.com/javase/7/docs/api/javax/swing/JTable.html
+public class WatchTablePane {
+    private JTable table;
+    private TableModel tmodel;
+    private JScrollPane spane;
+
+    public WatchTablePane(WatchList wlist) {
+        tmodel = new WatchTableModel(wlist);
+        table = new JTable(tmodel);
+        spane = new JScrollPane(table);
+    }
+
+    public JScrollPane getPane() {
+        return spane;
+    }
+}

src/test/WatchListTest.java

@@ -1,70 +0,0 @@
-import data.WatchList;
-import data.StypeMap;
-import data.StockType;
-import data.Nyse;
-import ui.Main;
-import java.io.*;
-import org.junit.jupiter.api.BeforeEach;
-import org.junit.jupiter.api.Test;
-import static org.junit.jupiter.api.Assertions.assertEquals;
-import static org.junit.jupiter.api.Assertions.assertFalse;
-import static org.junit.jupiter.api.Assertions.assertTrue;
-
-public class WatchListTest {
-    private WatchList watchlist;
-    private Main mainObj;
-    private StypeMap smap;
-
-    @BeforeEach
-    public void runBefore() {
-        mainObj = new Main(true);
-	watchlist = mainObj.getWatchList();
-        smap = new StypeMap();
-    }
-
-    @Test
-    public void testAddStock() {
-        StockType nyyyse = smap.getStype("Nyse");
-        for (int i = 0; i < 100; i++) {
-            watchlist.addStock(Integer.toString(i), nyyyse);
-        }
-    }
-
-    @Test
-    public void testSize() {
-        assertEquals(watchlist.size(), 0);
-        StockType nyyyse = smap.getStype("Nyse");
-        for (int i = 0; i < 100; i++) {
-            watchlist.addStock(Integer.toString(i), nyyyse);
-        }
-        assertEquals(watchlist.size(), 100);
-    }
-    
-    @Test
-    public void testDelStock() {
-        StockType nyyyse = smap.getStype("Nyse");
-        for (int i = 0; i < 100; i++) {
-            watchlist.addStock(Integer.toString(i), nyyyse);
-        }
-        for (int i = 0; i < 50; i++) {
-            watchlist.delStock(Integer.toString(i));
-        }
-        assertEquals(watchlist.size(), 50);
-    }
-
-    @Test
-    public void testSaveLoad() {
-        StockType nyyyse = smap.getStype("Nyse");
-        for (int i = 0; i < 100; i++) {
-            watchlist.addStock(Integer.toString(i), nyyyse);
-        }
-        watchlist.save("");
-        assertTrue(watchlist.fileExists(watchlist.DEFAULT_SAVEFILE));
-	Main testMain = new Main(true);
-	WatchList testlist = testMain.getWatchList();
-	testlist.load("");
-        assertEquals(watchlist.size(), testlist.size());
-        File testFile = new File(watchlist.DEFAULT_SAVEFILE);
-        testFile.delete();
-    }
-}

src/test/data/DataSourceTest.java

@@ -0,0 +1,47 @@
+package data;
+
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertTrue;
+import network.AlphaVantage;
+import java.io.IOException;
+
+public class DataSourceTest {
+    private StockType testStype;
+    private DataSource testSource;
+
+    @BeforeEach
+    public void runBefore() {
+        testStype = StypeMap.getStype("NYSE");
+        testSource = new AlphaVantage();
+    }
+
+    //Effect: test add and double deleting for many to many relationship
+    @Test
+    public void testAddDel() {
+        testStype.addSource(testSource);
+        testSource.delStype(testStype);
+        testSource.delStype(testStype);
+    }
+
+    //Effect: test overridden equals and hashcode
+    @Test
+    public void testEqualsHash() {
+        DataSource testSource2 = new AlphaVantage();
+        DataSource testSource3 = new DataSource("test source", "asdf", "asdf") {
+            @Override
+            public double[] update(String asdf, String asdf2) throws IOException {
+                double[] asdfjkl = {0.0, 0.0};
+                return asdfjkl;
+            }
+        };
+        String asdf = "asdf";
+        assertEquals(testSource, testSource);
+        assertEquals(testSource, testSource2);
+        assertFalse(testSource.equals(asdf));
+        assertFalse(testSource.equals(testSource3));
+        assertEquals(testSource.hashCode(), testSource2.hashCode());
+    }
+}

src/test/data/ListOfWatchListTest.java

@@ -0,0 +1,47 @@
+package data;
+
+import data.ListOfWatchList;
+import data.WatchList;
+import data.exceptions.*;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertTrue;
+import static org.junit.jupiter.api.Assertions.fail;
+
+public class ListOfWatchListTest {
+    private WatchList watchlist;
+
+    @BeforeEach
+    public void runBefore() {
+        watchlist = new WatchList();
+    }
+
+    //Effect: check if only one instance is returned
+    @Test
+    public void singletonCheck() {
+        assertTrue(ListOfWatchList.getList() == ListOfWatchList.getList());
+    }
+
+    //Effect: check double adding and deleting watchlists
+    @Test
+    public void addDelWatchList() {
+        ListOfWatchList lowl = ListOfWatchList.getList();
+        lowl.addWatchList(watchlist);
+        assertEquals(watchlist, lowl.getWatchList(0));
+        lowl.addWatchList(watchlist);
+        assertEquals(watchlist, lowl.getWatchList(0));
+        try {
+            lowl.getWatchList(1);
+        } catch (IndexOutOfBoundsException e) {
+            // expected fail
+        }
+        lowl.delWatchList(watchlist);
+        try {
+            lowl.getWatchList(0);
+        } catch (IndexOutOfBoundsException e) {
+            // expected fail
+        }
+    }
+}

src/test/data/NasdaqTest.java

@@ -0,0 +1,37 @@
+package test;
+
+import data.StypeMap;
+import data.StockType;
+import data.Nasdaq;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertTrue;
+import static org.junit.jupiter.api.Assertions.fail;
+
+public class NasdaqTest {
+    private StockType naasdaq;
+
+    @BeforeEach
+    // Effect: Initialize Stype
+    public void runBefore() {
+        naasdaq = StypeMap.getStype("NASDAQ");
+    }
+
+    @Test
+    //Effect: test if name matches
+    public void testName() {
+        assertTrue(naasdaq.getName().equals("NASDAQ"));
+    }
+
+    @Test
+    //Effect: check (indirectly) if update works, require internet to AlphaVantage
+    public void testUpdate() {
+        try {
+            double[] farray = naasdaq.update("MSFT");
+        } catch (Exception e) {
+            fail();
+        }
+    }
+}

src/test/data/NyseTest.java

@@ -0,0 +1,51 @@
+package data;
+
+import data.StypeMap;
+import data.StockType;
+import data.Nyse;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertTrue;
+import static org.junit.jupiter.api.Assertions.fail;
+
+public class NyseTest {
+    private StockType nyyyse;
+
+    @BeforeEach
+    public void runBefore() {
+        nyyyse = StypeMap.getStype("NYSE");
+    }
+
+    //Effect: test constructor and if name matches
+    @Test
+    public void testNameInit() {
+        assertTrue(nyyyse.getName().equals("NYSE"));
+    }
+
+    //Effect: will connect to the internet and test update
+    //Require: internet connection to AlphaVantage.co
+    @Test
+    public void testUpdate() {
+        try {
+            double[] farray = nyyyse.update("MSFT");
+        } catch (Exception e) {
+            fail();
+        }
+    }
+
+    //Effect: test overridden equals and hashcode
+    @Test
+    public void testEqualsHash() {
+        StockType testst1 = new Nyse();	
+        StockType testst2 = new Nasdaq();	
+        String asdf = "asdf";
+        assertEquals(nyyyse, nyyyse);
+        assertEquals(nyyyse, testst1);
+        assertFalse(nyyyse.equals(testst2));
+        assertFalse(nyyyse.equals(asdf));
+        assertEquals(nyyyse.hashCode(), testst1.hashCode());
+        assertFalse(nyyyse.hashCode() == testst2.hashCode());
+    }
+}

src/test/data/StockEntryTest.java

@@ -0,0 +1,50 @@
+package data;
+
+import data.StockEntry;
+import data.StypeMap;
+import data.StockType;
+import data.Nyse;
+import ui.Main;
+import java.io.*;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertTrue;
+
+public class StockEntryTest {
+    private StockEntry entry;
+    private StockType nyyyse;
+
+    @BeforeEach
+    public void runBefore() {
+        nyyyse = StypeMap.getStype("NYSE");
+    }
+
+    //Effect: test constructor, two getters and default 0 price
+    @Test
+    public void testTypeAndName() {
+        entry = new StockEntry(nyyyse, "test");
+        assertTrue(entry.getTypeName().equals("NYSE"));
+        assertTrue(entry.getID().equals("test"));
+        assertFalse(entry.isUpdating());
+        assertEquals(0, entry.getPrice());
+        assertEquals(0, entry.getChange());
+    }
+
+    //Effect: test overridden equals and hashcode
+    @Test
+    public void testEqualsHash() {
+        entry = new StockEntry(nyyyse, "test");
+        StockEntry entry2 = new StockEntry(nyyyse, "test");
+        StockEntry entry3 = new StockEntry(StypeMap.getStype("NASDAQ"),
+                                           "test");
+        String asdf = "asdf";
+        assertEquals(entry, entry);
+        assertEquals(entry, entry2);
+        assertFalse(entry.equals(entry3));
+        assertFalse(entry.equals(asdf));
+        assertEquals(entry.hashCode(), entry2.hashCode());
+        assertFalse(entry.hashCode() == entry3.hashCode());
+    }
+}

src/test/data/StypeMapTest.java

@@ -1,3 +1,5 @@
+package data;
+
 import data.StypeMap;
 import data.StockType;
 import data.Nyse;
@@ -8,16 +10,11 @@ import static org.junit.jupiter.api.Assertions.assertFalse;
 import static org.junit.jupiter.api.Assertions.assertTrue;
 
 public class StypeMapTest {
-    private StypeMap stypemap;
-
-    @BeforeEach
-    public void runBefore() {
-        stypemap = new StypeMap();
-    }
 
     @Test
+    //Effect: Test if Stype NYSE exists in StypeMap
     public void testGetStype() {
-        StockType stype = stypemap.getStype("Nyse");
+        StockType stype = StypeMap.getStype("NYSE");
         assertEquals(stype.getName(), "NYSE");
     }
 }

src/test/data/WatchListTest.java

@@ -0,0 +1,125 @@
+package data;
+
+import data.WatchList;
+import data.StypeMap;
+import data.StockType;
+import data.Nyse;
+import data.exceptions.*;
+import ui.Main;
+import java.io.*;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertTrue;
+import static org.junit.jupiter.api.Assertions.fail;
+
+public class WatchListTest {
+    private WatchList watchlist;
+
+    @BeforeEach
+    public void runBefore() {
+        watchlist = new WatchList();
+    }
+
+    //Effect: add stock named 1 to 100 to watchlist, test if index is keep
+    //counting up and if getNames() works
+    @Test
+    public void testAddStockNames() {
+        String[] testarray = new String[100];
+        String[] testgetName = new String[100];
+        for (int i = 0; i < 100; i++) {
+            watchlist.addStock(Integer.toString(i));
+            testarray[i] = Integer.toString(i);
+        }
+        testgetName = watchlist.getNames();
+        for (int i = 0; i < 100; i++) {
+            assertEquals(testarray[i], watchlist.getStock(i).getID());
+            assertEquals(Integer.toString(i), watchlist.getStock(i).getID());
+            assertEquals(testarray[i], testgetName[i]);
+            assertEquals(Integer.toString(i), testgetName[i]);
+        }
+    }
+
+    //Effect: test size function for 100 stocks
+    @Test
+    public void testSize() {
+        assertEquals(watchlist.size(), 0);
+        for (int i = 0; i < 100; i++) {
+            watchlist.addStock(Integer.toString(i));
+        }
+        assertEquals(watchlist.size(), 100);
+    }
+
+    @Test
+    public void testDelStockNoThrow() {
+        for (int i = 0; i < 100; i++) {
+            watchlist.addStock(Integer.toString(i));
+        }
+        for (int i = 0; i < 50; i++) {
+            try {
+                watchlist.delStock(Integer.toString(i));
+            } catch (WatchListExceptions e) {
+                fail();
+            }
+        }
+        assertEquals(watchlist.size(), 50);
+    }
+
+    @Test
+    public void testDelNotExistsStock() {
+        for (int i = 0; i < 100; i++) {
+            watchlist.addStock(Integer.toString(i));
+        }
+        try {
+            watchlist.delStock(Integer.toString(-1));
+            fail();
+        } catch (WatchListExceptions e) {
+            //expected to throw
+        }
+    }
+
+    @Test
+    public void testSaveLoad() {
+        for (int i = 0; i < 100; i++) {
+            watchlist.addStock(Integer.toString(i));
+        }
+        watchlist.save("");
+        assertTrue(watchlist.fileExists(watchlist.DEFAULT_SAVEFILE));
+        WatchList testlist = new WatchList();
+        testlist.load("");
+        assertEquals(watchlist.size(), testlist.size());
+        File testFile = new File(watchlist.DEFAULT_SAVEFILE);
+        testFile.delete();
+    }
+
+    @Test
+    public void testFileNotFound() {
+        //redirect stdout: https://stackoverflow.com/questions/1119385/junit-test-for-system-out-println
+        ByteArrayOutputStream outContent = new ByteArrayOutputStream();
+        ByteArrayOutputStream errContent = new ByteArrayOutputStream();
+        PrintStream originalOut = System.out;
+        PrintStream originalErr = System.err;
+        System.setOut(new PrintStream(outContent));
+        System.setErr(new PrintStream(errContent));
+        watchlist.load("thisfiledoesnotexist-andwillneverexists");
+        assertEquals("File not found: thisfiledoesnotexist-andwillneverexists\n", outContent.toString());
+        System.setOut(originalOut);
+        System.setErr(originalErr);
+    }
+
+    @Test
+    public void testUpdateEmptyList() {
+        watchlist.updateList();
+        watchlist.addStock("MSFT");
+        watchlist.updateList();
+        //https://stackoverflow.com/questions/24104313/how-do-i-make-a-delay-in-java
+        try {
+            Thread.sleep(500);
+        } catch (Exception e) {
+            e.printStackTrace();
+            fail();
+        } 
+        watchlist.updateList();
+    }
+}