change Collection to List

xchart-demo/src/main/java/com/xeiam/xchart/demo/charts/bar/BarChart02.java

@@ -19,7 +19,6 @@ import java.text.DateFormat;
 import java.text.ParseException;
 import java.text.SimpleDateFormat;
 import java.util.ArrayList;
-import java.util.Collection;
 import java.util.Date;
 import java.util.List;
 import java.util.Random;
@@ -61,7 +60,7 @@ public class BarChart02 implements ExampleChart {
     Chart chart = new ChartBuilder().theme(ChartTheme.Matlab).chartType(ChartType.Bar).width(800).height(600).title("Units Sold Per Year").xAxisTitle("Year").yAxisTitle("Units Sold").build();
 
     List<Date> xData = new ArrayList<Date>();
-    Collection<Number> yData = new ArrayList<Number>();
+    List<Number> yData = new ArrayList<Number>();
 
     Random random = new Random();
     DateFormat sdf = new SimpleDateFormat("yyyy");

xchart-demo/src/main/java/com/xeiam/xchart/demo/charts/line/LineChart03.java

@@ -21,8 +21,8 @@ import java.text.DateFormat;
 import java.text.ParseException;
 import java.text.SimpleDateFormat;
 import java.util.ArrayList;
-import java.util.Collection;
 import java.util.Date;
+import java.util.List;
 import java.util.Locale;
 
 import com.xeiam.xchart.Chart;
@@ -54,8 +54,8 @@ public class LineChart03 implements ExampleChart {
     Chart chart = new Chart(800, 600);
 
     // generates linear data
-    Collection<Date> xData = new ArrayList<Date>();
-    Collection<Double> yData = new ArrayList<Double>();
+    List<Date> xData = new ArrayList<Date>();
+    List<Double> yData = new ArrayList<Double>();
 
     DateFormat sdf = new SimpleDateFormat("dd.MM.yyyy");
     Date date = null;

xchart-demo/src/main/java/com/xeiam/xchart/demo/charts/scatter/ScatterChart01.java

@@ -15,9 +15,9 @@
  */
 package com.xeiam.xchart.demo.charts.scatter;
 
-import java.util.HashSet;
+import java.util.LinkedList;
+import java.util.List;
 import java.util.Random;
-import java.util.Set;
 
 import com.xeiam.xchart.Chart;
 import com.xeiam.xchart.StyleManager.ChartType;
@@ -47,8 +47,8 @@ public class ScatterChart01 implements ExampleChart {
   @Override
   public Chart getChart() {
 
-    Set<Double> xData = new HashSet<Double>();
-    Set<Double> yData = new HashSet<Double>();
+    List<Double> xData = new LinkedList<Double>();
+    List<Double> yData = new LinkedList<Double>();
     Random random = new Random();
     int size = 1000;
     for (int i = 0; i < size; i++) {

xchart-demo/src/main/java/com/xeiam/xchart/demo/charts/theme/ThemeChart01.java

@@ -16,7 +16,7 @@
 package com.xeiam.xchart.demo.charts.theme;
 
 import java.util.ArrayList;
-import java.util.Collection;
+import java.util.List;
 
 import com.xeiam.xchart.Chart;
 import com.xeiam.xchart.SwingWrapper;
@@ -48,8 +48,8 @@ public class ThemeChart01 implements ExampleChart {
 
       // generates linear data
       int b = 20;
-      Collection<Number> xData = new ArrayList<Number>();
-      Collection<Number> yData = new ArrayList<Number>();
+      List<Number> xData = new ArrayList<Number>();
+      List<Number> yData = new ArrayList<Number>();
       for (int x = 0; x <= b; x++) {
         xData.add(2 * x - b);
         yData.add(2 * i * x - i * b);

xchart/src/main/java/com/xeiam/xchart/Chart.java

@@ -17,7 +17,6 @@ package com.xeiam.xchart;
 
 import java.awt.Graphics2D;
 import java.util.ArrayList;
-import java.util.Collection;
 import java.util.List;
 import java.util.Map;
 
@@ -110,7 +109,7 @@ public class Chart {
    * @param yData the Y-Axis data
    * @return A Series object that you can set properties on
    */
-  public Series addSeries(String seriesName, Collection<?> xData, Collection<? extends Number> yData) {
+  public Series addSeries(String seriesName, List<?> xData, List<? extends Number> yData) {
 
     return chartPainter.getAxisPair().addSeries(seriesName, xData, yData, null);
   }
@@ -124,7 +123,7 @@ public class Chart {
    * @param errorBars the error bar data
    * @return A Series object that you can set properties on
    */
-  public Series addSeries(String seriesName, Collection<?> xData, Collection<? extends Number> yData, Collection<? extends Number> errorBars) {
+  public Series addSeries(String seriesName, List<?> xData, List<? extends Number> yData, List<? extends Number> errorBars) {
 
     return chartPainter.getAxisPair().addSeries(seriesName, xData, yData, errorBars);
   }

xchart/src/main/java/com/xeiam/xchart/QuickChart.java

@@ -15,7 +15,7 @@
  */
 package com.xeiam.xchart;
 
-import java.util.Collection;
+import java.util.List;
 
 /**
  * A convenience class for making Charts with one line of code
@@ -104,7 +104,7 @@ public final class QuickChart {
    * @param yData A Collection containing Y-Axis data
    * @return a Chart Object
    */
-  public static Chart getChart(String chartTitle, String xTitle, String yTitle, String seriesName, Collection<Number> xData, Collection<Number> yData) {
+  public static Chart getChart(String chartTitle, String xTitle, String yTitle, String seriesName, List<Number> xData, List<Number> yData) {
 
     // Create Chart
     Chart chart = new Chart(WIDTH, HEIGHT);

xchart/src/main/java/com/xeiam/xchart/Series.java

@@ -20,6 +20,7 @@ import java.awt.Color;
 import java.util.Collection;
 import java.util.Date;
 import java.util.Iterator;
+import java.util.List;
 
 import com.xeiam.xchart.internal.chartpart.Axis.AxisType;
 import com.xeiam.xchart.internal.markers.Marker;
@@ -38,15 +39,15 @@ public class Series {
 
   private String name = "";
 
-  private Collection<?> xData;
+  private List<?> xData;
   private AxisType xAxisType;
 
-  private Collection<? extends Number> yData;
+  private List<? extends Number> yData;
   private AxisType yAxisType;
 
   private SeriesType seriesType;
 
-  private Collection<? extends Number> errorBars;
+  private List<? extends Number> errorBars;
 
   /** the minimum value of axis range */
   private double xMin;
@@ -86,7 +87,7 @@ public class Series {
    * @param errorBars
    * @param seriesColorMarkerLineStyle
    */
-  public Series(String name, Collection<?> xData, AxisType xAxisType, Collection<? extends Number> yData, AxisType yAxisType, Collection<? extends Number> errorBars,
+  public Series(String name, List<?> xData, AxisType xAxisType, List<? extends Number> yData, AxisType yAxisType, List<? extends Number> errorBars,
       SeriesColorMarkerLineStyle seriesColorMarkerLineStyle) {
 
     if (name == null || name.length() < 1) {
@@ -331,7 +332,7 @@ public class Series {
     return name;
   }
 
-  public void replaceData(Collection<?> newXData, Collection<? extends Number> newYData, Collection<? extends Number> newErrorBars) {
+  public void replaceData(List<?> newXData, List<? extends Number> newYData, List<? extends Number> newErrorBars) {
 
     // Sanity check
     if (newErrorBars != null && newErrorBars.size() != newYData.size()) {

xchart/src/main/java/com/xeiam/xchart/XChartPanel.java

@@ -27,7 +27,6 @@ import java.awt.event.MouseListener;
 import java.io.File;
 import java.io.IOException;
 import java.util.ArrayList;
-import java.util.Collection;
 import java.util.List;
 
 import javax.swing.AbstractAction;
@@ -284,7 +283,7 @@ public class XChartPanel extends JPanel {
    * @param newErrorBarData - set null if there are no error bars
    * @return
    */
-  public Series updateSeries(String seriesName, Collection<?> newXData, List<? extends Number> newYData, List<? extends Number> newErrorBarData) {
+  public Series updateSeries(String seriesName, List<?> newXData, List<? extends Number> newYData, List<? extends Number> newErrorBarData) {
 
     Series series = chart.getSeriesMap().get(seriesName);
     if (series == null) {

xchart/src/main/java/com/xeiam/xchart/internal/chartpart/AxisPair.java

@@ -18,7 +18,6 @@ package com.xeiam.xchart.internal.chartpart;
 import java.awt.Graphics2D;
 import java.awt.Rectangle;
 import java.util.ArrayList;
-import java.util.Collection;
 import java.util.Date;
 import java.util.Iterator;
 import java.util.LinkedHashMap;
@@ -66,7 +65,7 @@ public class AxisPair implements ChartPart {
    * @param errorBars
    * @return Series
    */
-  public Series addSeries(String seriesName, Collection<?> xData, Collection<? extends Number> yData, Collection<? extends Number> errorBars) {
+  public Series addSeries(String seriesName, List<?> xData, List<? extends Number> yData, List<? extends Number> errorBars) {
 
     // Sanity checks
     if (seriesName == null) {