import org.jfree.chart.JFreeChart;
import org.jfree.chart.ChartFactory;
import org.jfree.data.xy.MatrixSeriesCollection;
import org.jfree.data.xy.MatrixSeries;
import org.jfree.chart.plot.PlotOrientation;

import javax.swing.JFrame;
import java.awt.BorderLayout;
import org.jfree.chart.ChartPanel;

public class Test2_1 extends JFrame{
  public static void main(String[] args) {
    Test2_1 frame = new Test2_1();

    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    frame.setBounds(10, 10, 500, 500);
    frame.setTitle("グラフサンプル");
    frame.setVisible(true);
  }

  Test2_1(){
    MatrixSeriesCollection data = new MatrixSeriesCollection();
    JFreeChart chart = ChartFactory.createBubbleChart("収益分析", 
                                                 "ページ数",
                                                 "更新頻度",
                                                 createData(),
                                                 PlotOrientation.VERTICAL, 
                                                 true, 
                                                 false, 
                                                 false);

    ChartPanel cpanel = new ChartPanel(chart);
    getContentPane().add(cpanel, BorderLayout.CENTER);
  }

  private MatrixSeriesCollection createData(){
    MatrixSeriesCollection data = new MatrixSeriesCollection();

    MatrixSeries series = new MatrixSeries("物販", 20, 20);
    series.update(16, 14, 8d);
    series.update(13, 16, 4d);
    series.update(4, 4, 3d);
    series.update(5, 16, 6d);
    series.update(12, 6, 4d);

    data.addSeries(series);

    return data;
  }
}