private static JFreeChart createChart(CategoryDataset categorydataset) { JFreeChart jfreechart = ChartFactory.createBarChart( "Bar Chart Demo 1", "Category", "Value", categorydataset, PlotOrientation.VERTICAL, true, true, false); CategoryPlot categoryplot = (CategoryPlot) jfreechart.getPlot(); categoryplot.setDomainGridlinesVisible(true); categoryplot.setRangeCrosshairVisible(true); categoryplot.setRangeCrosshairPaint(Color.blue); NumberAxis numberaxis = (NumberAxis) categoryplot.getRangeAxis(); numberaxis.setStandardTickUnits(NumberAxis.createIntegerTickUnits()); BarRenderer barrenderer = (BarRenderer) categoryplot.getRenderer(); barrenderer.setDrawBarOutline(false); GradientPaint gradientpaint = new GradientPaint(0.0F, 0.0F, Color.blue, 0.0F, 0.0F, new Color(0, 0, 64)); GradientPaint gradientpaint1 = new GradientPaint(0.0F, 0.0F, Color.green, 0.0F, 0.0F, new Color(0, 64, 0)); GradientPaint gradientpaint2 = new GradientPaint(0.0F, 0.0F, Color.red, 0.0F, 0.0F, new Color(64, 0, 0)); barrenderer.setSeriesPaint(0, gradientpaint); barrenderer.setSeriesPaint(1, gradientpaint1); barrenderer.setSeriesPaint(2, gradientpaint2); barrenderer.setLegendItemToolTipGenerator( new StandardCategorySeriesLabelGenerator("Tooltip: {0}")); CategoryAxis categoryaxis = categoryplot.getDomainAxis(); categoryaxis.setCategoryLabelPositions( CategoryLabelPositions.createUpRotationLabelPositions(0.52359877559829882D)); return jfreechart; }