Question

我试图让arylylist needs_elements中的每个元素都填充在图表上。现在我正在重复这样做。我的代码如下：

的ArrayList

   Root C = gson.fromJson(profile.toString(), Root.class);
   ArrayList<Double> percentagesList = new ArrayList();
   Root.SubTree t = C.getSubTree(); //Gets subtree from root
   ArrayList<Children> c = t.getChildren(); 
   Children needs = c.get(1);
   ArrayList<Children1> needsChildren = needs.getChildren();
   Children1 needsChildren1 = needsChildren.get(0);
   ArrayList <Children2> needs_elements = needsChildren1.getChildren(); //ELEMENTS FROM THIS ARRAYLIST

我的方式

         double CHTotal = 0;        
          percentagesList.add(needs_elements.get(0).getPercentage());
          CHTotal = needs_elements.get(0).getPercentage();
          System.out.println(CHTotal);

//--------------Barchart-----------------------------------------------------
          dcd.setValue(CHTotal, "Percentage", "Openness"); //Show here 
          JFreeChart jchart = ChartFactory.createBarChart3D("Arrays", "Types","Percentage" , dcd, PlotOrientation.VERTICAL,true,true,false ); //chart
            CategoryPlot plot = jchart.getCategoryPlot();
            ChartFrame chartFRM = new ChartFrame("Student Records", jchart,true);  
            chartFRM.setVisible(true);
            chartFRM.setSize(500,400);

我必须为大约10多个元素做这件事。有没有办法可以自动获取needs_elements arraylist中的每个元素并使其在条形图中增加？谢谢你的时间:)

将每个元素分配给图形

0 个答案: