import ?java.awt.Color;
import ?java.awt.Font;
import ?java.io.FileNotFoundException;
import ?java.io.FileOutputStream;
import ?java.io.IOException;
import ?java.text.DecimalFormat;
import ?java.text.NumberFormat;

import ?org.jfree.chart.ChartFactory;
import ?org.jfree.chart.ChartUtilities;
import ?org.jfree.chart.JFreeChart;
import ?org.jfree.chart.labels.StandardPieSectionLabelGenerator;
import ?org.jfree.chart.plot.PiePlot;
import ?org.jfree.data.general.DefaultPieDataset;

public ? class ?PieChartTest? {
????
???? public ? static ? void ?main(String[]?args) {
????????DefaultPieDataset?pieDataset? = ? new ?DefaultPieDataset();
????????pieDataset.setValue( " 北京局 " , 20 );
????????pieDataset.setValue( " 上海局 " , 18 );
????????pieDataset.setValue( " 天津局 " , 16 );
????????pieDataset.setValue( " 重慶局 " , 15 );
????????pieDataset.setValue( " 山東局 " , 45 );
????????
????????JFreeChart?chart? = ?ChartFactory.createPieChart3D( " 企業備案圖 " ,pieDataset,? true ,? false ,? false );
???????? /**?*/ /** *************A?start******** */
???????? // 設置標題字體樣式
????????chart.getTitle().setFont( new ?Font( " 黑體 " ,Font.BOLD, 20 ));
???????? // 設置餅狀圖里描述字體樣式
????????PiePlot?piePlot = ?(PiePlot)?chart.getPlot();
????????piePlot.setLabelFont( new ?Font( " 黑體 " ,Font.BOLD, 10 ));
???????? // 設置顯示百分比樣式
????????piePlot.setLabelGenerator( new ?StandardPieSectionLabelGenerator(?
????????????????( " {0}({2}) " ),?NumberFormat.getNumberInstance(),?
???????????????? new ?DecimalFormat( " 0.00% " )));?
???????? // 設置統計圖背景
????????piePlot.setBackgroundPaint(Color.white);
???????? // 設置圖片最底部字體樣式
????????chart.getLegend().setItemFont( new ?Font( " 黑體 " ,Font.BOLD, 10 ));
???????? /**?*/ /** *************A?end******** */
???????? try ? {
????????????ChartUtilities.writeChartAsPNG( new ?FileOutputStream( " D:\\pieChart.jpg " ),?chart,? 400 ,? 300 );
????????} ? catch ?(FileNotFoundException?e)? {
????????????e.printStackTrace();
????????} ? catch ?(IOException?e)? {
????????????e.printStackTrace();
????????}
????}

}