jfreechart y轴上显示整数数据

NumberAxis numberAxis = (NumberAxis) plot.getRangeAxis();numberAxis.setStandardTickUnits(NumberAxis.createIntegerTickUnits());//设置y轴显示整数数据//在饼状图上显示百分比pieplot.setLabelGenerator(new StandardPieSectionLabelGenerator(("{0}: ({2})"),    NumberFormat.getNumberInstance(),new DecimalFormat("0.00%")));