title: JFreeChart Bar Chart Production
body: <p>I'm trying to create a bar chart that generates a dataset from within a for loop. </p>
  
  <pre><code>String scores = scoreText.getText();
  String[] data = scores.split(",");
  
  DefaultCategoryDataset barChartDataset = null;
  
  for (int l = 0; l &lt; data.length; l++) {
       barChartDataset = new DefaultCategoryDataset();
         // barChartDataset.setValue(new Double(data[l]), "Scores", stu);
         barChartDataset.addValue(new Double(data[l]), "Scores", stu);
         System.out.println(data[l]);
      }
  
      JFreeChart barChart = ChartFactory.createBarChart3D("Summary", "Name", "Scores", barChartDataset, PlotOrientation.VERTICAL, false, true, false);
  </code></pre>
  
  <p>The data is <code>10,5</code>. Now when the data goes through all of this and the graph is generated, only the bar for the value 5 is shown. Where is the separate bar for the value of 10? Does anyone know what I'm doing wrong? Any help is appreciated. Thanks</p>
  
  <p>EDIT:
  Here is the code for the bar graph:</p>
  
  <pre><code>String scores = scoreText.getText();
      String[] data = scores.split(",");
  
      DefaultCategoryDataset barChartDataset = new DefaultCategoryDataset();
      //JFreeChart barChart = null;
  
      for (int l = 0; l &lt; data.length; l++) {
          //barChartDataset.addValue(new Double(data[l]), "Scores", stu);
          barChartDataset.setValue(new Double(data[l]), "Scores", stu);
          System.out.println(new Double(data[l]));
      }
  
      JFreeChart barChart = ChartFactory.createBarChart3D("Summary", "Name", "Scores", barChartDataset, PlotOrientation.VERTICAL, false, true, false);
  
      barChart.setBackgroundPaint(Color.YELLOW);
      barChart.getTitle().setPaint(Color.RED);
  
      final CategoryPlot categoryPlot = barChart.getCategoryPlot();
  
      BarRenderer barRenderer = (BarRenderer) categoryPlot.getRenderer();
  
      DecimalFormat decimalFormat = new DecimalFormat("#.##");
  
      barRenderer.setItemLabelGenerator(new StandardCategoryItemLabelGenerator("{2}", decimalFormat));
      categoryPlot.setRenderer(barRenderer);
      barRenderer.setBasePositiveItemLabelPosition(new ItemLabelPosition(ItemLabelAnchor.OUTSIDE12, TextAnchor.HALF_ASCENT_CENTER));
      barRenderer.setItemLabelsVisible(true);
      barChart.getCategoryPlot().setRenderer(barRenderer);
  
      ValueMarker marker = new ValueMarker(7);
  
      marker.setLabel("Required Level");
  
      marker.setLabelAnchor(RectangleAnchor.BOTTOM_RIGHT);
  
      marker.setLabelTextAnchor(TextAnchor.TOP_RIGHT);
      marker.setPaint(Color.BLACK);
      categoryPlot.addRangeMarker(marker);
  
      categoryPlot.setRangeGridlinePaint(Color.BLUE);
  
  
      //The JFrame that the bar chart will be in.
      ChartFrame chartFrame = new ChartFrame("Bar Chart for Parameters", barChart);
      chartFrame.setVisible(true);
      chartFrame.setSize(600, 600);
  </code></pre>