各位大侠给个Demo，不胜感激，
比如：一个JFrame里面设置2个Jpanel，每个Jpanel里显示一个饼状图，这只是我个人的想法，但是代码没实现出来，哪位大侠可以给出简单Demo，当然有更好的Demo希望各位分享一下，耽误你5分钟时间，我在线结贴。
先谢过。
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- Java code
import javax.swing.*; import org.jfree.chart.ChartFactory;import org.jfree.chart.ChartPanel;import org.jfree.chart.JFreeChart;import org.jfree.chart.plot.PiePlot;import org.jfree.data.general.DefaultPieDataset;import org.jfree.data.general.PieDataset;import java.awt.*; public class Test { public static void main(String [] args){ JFrame frame = new JFrame(); frame.setSize(new Dimension(800,800)); frame.setLocation(10,10); frame.setLayout(new FlowLayout()); JPanel p1=new JPanel(); JPanel p2=new JPanel(); //把Jbutton替换为你的饼图应该就可以了。 //JButton b1=new JButton("JPanel1"); //饼图1 JFreeChart chart = createChart(createDataset()); // JButton b2=new JButton("JPanel2"); ChartPanel localChartPanel = new ChartPanel(chart, false); //饼图2 JFreeChart chart2 = createChart(createDataset()); ChartPanel localChartPanel2 = new ChartPanel(chart2, false); p1.add(localChartPanel); //p1.add(b1); p2.add(localChartPanel2); frame.add(p1, FlowLayout.LEFT); frame.add(p2, FlowLayout.CENTER); //在设置frame为显示状态 frame.setVisible(true); } /** * Creates a sample dataset. * * @return A sample dataset. */ private static PieDataset createDataset() { DefaultPieDataset dataset = new DefaultPieDataset(); dataset.setValue("One", new Double(43.2)); dataset.setValue("Two", new Double(10.0)); dataset.setValue("Three", new Double(27.5)); dataset.setValue("Four", new Double(17.5)); dataset.setValue("Five", new Double(11.0)); dataset.setValue("Six", new Double(19.4)); return dataset; } /** * Creates a chart. * * @param dataset the dataset. * * @return A chart. */ private static JFreeChart createChart(PieDataset dataset) { JFreeChart chart = ChartFactory.createPieChart( "Pie Chart Demo 1", // chart title dataset, // data true, // include legend true, false ); PiePlot plot = (PiePlot) chart.getPlot(); plot.setSectionOutlinesVisible(false); plot.setLabelFont(new Font("SansSerif", Font.PLAIN, 12)); plot.setNoDataMessage("No data available"); plot.setCircular(false); plot.setLabelGap(0.02); return chart; } }