createHighLowChart
public static JFreeChart createHighLowChart(java.lang.String title,
                                            java.lang.String timeAxisLabel,
                                            java.lang.String valueAxisLabel,
                                            OHLCDataset dataset,
                                            boolean legend)

Date[] date = new Date[0];
double[] high = new double[0];
double[] low = new double[0];
double[] open = new double[0];
double[] close = new double[0];
double[] volume = new double[0];

DefaultHighLowDataset data = new DefaultHighLowDataset("A商事",
                                                       date,
                                                       high,
                                                       low,
                                                       open,
                                                       close,
                                                       volume);

JFreeChart chart = ChartFactory.createHighLowChart("株価推移",
                                                   "日付",
                                                   "金額",
                                                   data,
                                                   true);

サンプルプログラム

/**
 * ハイローグラフの作成(createHighLowChartメソッド)
 */
import org.jfree.chart.JFreeChart;
import org.jfree.chart.ChartFactory;
import org.jfree.data.xy.DefaultHighLowDataset;

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

import java.util.Date;

public class Test1_1 extends JFrame{
  public static void main(String[] args) {
    Test1_1 frame = new Test1_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);
  }

  Test1_1(){
    Date[] date = new Date[0];
    double[] high = new double[0];
    double[] low = new double[0];
    double[] open = new double[0];
    double[] close = new double[0];
    double[] volume = new double[0];

    DefaultHighLowDataset data = new DefaultHighLowDataset("A商事",
                                                       date,
                                                       high,
                                                       low,
                                                       open,
                                                       close,
                                                       volume);

    JFreeChart chart = ChartFactory.createHighLowChart("株価推移", 
                                                     "日付",
                                                     "金額",
                                                     data,
                                                     true);
    ChartPanel cpanel = new ChartPanel(chart);
    getContentPane().add(cpanel, BorderLayout.CENTER);
  }
}

java.lang.Object
 |
 +- org.jfree.data.general.AbstractDataset
     |
     +- org.jfree.data.general.AbstractSeriesDataset
         |
         +- org.jfree.data.xy.AbstractXYDataset
             |
             +- org.jfree.data.xy.DefaultHighLowDataset

public class DefaultHighLowDataset extends AbstractXYDataset implements OHLCDataset,
                                                       org.jfree.util.PublicCloneable

DefaultHighLowDataset
public DefaultHighLowDataset(java.lang.Comparable seriesKey,
                             java.util.Date[] date,
                             double[] high,
                             double[] low,
                             double[] open,
                             double[] close,
                             double[] volume)

Date[] date = new Date[1];
double[] high = new double[1];
double[] low = new double[1];
double[] open = new double[1];
double[] close = new double[1];
double[] volume = new double[1];

Calendar calendar = Calendar.getInstance();
calendar.set(2008, 5, 1);

date[0] = calendar.getTime();
high[0] = 82.0d;
low[0] = 57.0d;
open[0] = 63.0d;
close[0] = 74.0d;
volume[0] = 18.0d;

DefaultHighLowDataset data = new DefaultHighLowDataset("系列名",
                                                       date,
                                                       high,
                                                       low,
                                                       open,
                                                       close,
                                                       volume);

サンプルプログラム

/**
 * ハイローグラフのデータ(DefaultHighLowDatasetクラス)
 */
import org.jfree.chart.JFreeChart;
import org.jfree.chart.ChartFactory;
import org.jfree.data.xy.DefaultHighLowDataset;

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

import java.util.Date;
import java.util.Calendar;

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(){
    JFreeChart chart = ChartFactory.createHighLowChart("株価推移", 
                                                     "日付",
                                                     "金額",
                                                     createData(),
                                                     true);
    ChartPanel cpanel = new ChartPanel(chart);
    getContentPane().add(cpanel, BorderLayout.CENTER);
  }

  private DefaultHighLowDataset createData(){
    Date[] date = new Date[5];
    double[] high = new double[5];
    double[] low = new double[5];
    double[] open = new double[5];
    double[] close = new double[5];
    double[] volume = new double[5];

    date[0] = createData(2007, 7, 4);
    high[0] = 44.0d;
    low[0] = 30.0d;
    open[0] = 34.0d;
    close[0] = 42.0d;
    volume[0] = 18.0d;

    date[1] = createData(2007, 7, 5);
    high[1] = 62.0d;
    low[1] = 37.0d;
    open[1] = 37.0d;
    close[1] = 55.0d;
    volume[1] = 10.0d;

    date[2] = createData(2007, 7, 6);
    high[2] = 78.0d;
    low[2] = 55.0d;
    open[2] = 55.0d;
    close[2] = 78.0d;
    volume[2] = 10.0d;

    date[3] = createData(2007, 7, 7);
    high[3] = 85.0d;
    low[3] = 61.0d;
    open[3] = 80.0d;
    close[3] = 61.0d;
    volume[3] = 10.0d;

    date[4] = createData(2007, 7, 8);
    high[4] = 65.0d;
    low[4] = 37.0d;
    open[4] = 58.0d;
    close[4] = 32.0d;
    volume[4] = 10.0d;

    DefaultHighLowDataset data = new DefaultHighLowDataset("A商事",
                                                       date,
                                                       high,
                                                       low,
                                                       open,
                                                       close,
                                                       volume);

    return data;
  }

  private Date createData(int year, int month, int date){
    Calendar calendar = Calendar.getInstance();
    calendar.set(year, month - 1, date);
    return calendar.getTime();
  }
}

JFreeChart chart = ChartFactory.createHighLowChart(...);      /* 引数は省略 */

XYPlot plot = (XYPlot)chart.getPlot();

サンプルプログラム

/**
 * ハイローグラフの描画領域(XYPlotクラス)
 */
import org.jfree.chart.JFreeChart;
import org.jfree.chart.ChartFactory;
import org.jfree.data.xy.DefaultHighLowDataset;

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

import java.util.Date;
import java.util.Calendar;

import org.jfree.chart.plot.XYPlot;
import java.awt.Color;

public class Test3_2 extends JFrame{
  public static void main(String[] args) {
    Test3_2 frame = new Test3_2();

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

  Test3_2(){
    JFreeChart chart = ChartFactory.createHighLowChart("株価推移", 
                                                     "日付",
                                                     "金額",
                                                     createData(),
                                                     true);

    XYPlot plot = (XYPlot)chart.getPlot();
    plot.setBackgroundPaint(new Color(200, 255, 200));

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

  private DefaultHighLowDataset createData(){
    Date[] date = new Date[5];
    double[] high = new double[5];
    double[] low = new double[5];
    double[] open = new double[5];
    double[] close = new double[5];
    double[] volume = new double[5];

    date[0] = createData(2007, 7, 4);
    high[0] = 44.0d;
    low[0] = 30.0d;
    open[0] = 34.0d;
    close[0] = 42.0d;
    volume[0] = 18.0d;

    date[1] = createData(2007, 7, 5);
    high[1] = 62.0d;
    low[1] = 37.0d;
    open[1] = 37.0d;
    close[1] = 55.0d;
    volume[1] = 10.0d;

    date[2] = createData(2007, 7, 6);
    high[2] = 78.0d;
    low[2] = 55.0d;
    open[2] = 55.0d;
    close[2] = 78.0d;
    volume[2] = 10.0d;

    date[3] = createData(2007, 7, 7);
    high[3] = 85.0d;
    low[3] = 61.0d;
    open[3] = 80.0d;
    close[3] = 61.0d;
    volume[3] = 10.0d;

    date[4] = createData(2007, 7, 8);
    high[4] = 65.0d;
    low[4] = 37.0d;
    open[4] = 58.0d;
    close[4] = 32.0d;
    volume[4] = 10.0d;

    DefaultHighLowDataset data = new DefaultHighLowDataset("A商事",
                                                       date,
                                                       high,
                                                       low,
                                                       open,
                                                       close,
                                                       volume);

    return data;
  }

  private Date createData(int year, int month, int date){
    Calendar calendar = Calendar.getInstance();
    calendar.set(year, month - 1, date);
    return calendar.getTime();
  }
}