In JFreeChart how to make tooltip work for XYBarRenderer?

I have the following code :

import java.awt.event.*;
import java.text.DecimalFormat;
import javax.swing.*;
import org.jfree.chart.ChartFactory;
import org.jfree.chart.ChartPanel;
import org.jfree.chart.JFreeChart;
import org.jfree.chart.axis.NumberAxis;
import org.jfree.chart.date.*;
import org.jfree.chart.plot.XYPlot;
import org.jfree.chart.renderer.xy.XYBarRenderer;
import org.jfree.chart.renderer.xy.XYItemRenderer;
import org.jfree.data.time.Day;
import org.jfree.data.time.TimeSeries;
import org.jfree.data.time.TimeSeriesCollection;
import org.jfree.data.xy.IntervalXYDataset;
import org.jfree.data.xy.XYDataset;
public class PriceVolume_Chart extends JPanel                                       // A demonstration application showing how to create a price-volume chart.   
{
static boolean EXIT_ON_CLOSE_B=true;
public PriceVolume_Chart(String title)
{
JFreeChart chart=createChart();
ChartPanel panel=new ChartPanel(chart,true,true,true,false,true);
panel.setPreferredSize(new java.awt.Dimension(1000,500));
add(panel);
}
private JFreeChart createChart()
{
XYDataset priceData=createPriceDataset();
String title="Eurodollar Futures Contract (MAR03)";
JFreeChart chart=ChartFactory.createTimeSeriesChart(title,
"Date",
getYLabel("Price ( $ )"),
priceData,
true,
true,
true
);
XYPlot plot=chart.getXYPlot();
NumberAxis rangeAxis1=(NumberAxis)plot.getRangeAxis();
rangeAxis1.setLowerMargin(0.40);  // to leave room for volume bars   
DecimalFormat format=new DecimalFormat("00.00");
rangeAxis1.setNumberFormatOverride(format);
NumberAxis rangeAxis2=new NumberAxis("Volume");
rangeAxis2.setUpperMargin(1.00);  // to leave room for price line   
plot.setRangeAxis(1,rangeAxis2);
plot.setDataset(1,createVolumeDataset());
plot.setRangeAxis(1,rangeAxis2);
plot.mapDatasetToRangeAxis(1,1);
XYBarRenderer renderer2=new XYBarRenderer(0.20);
renderer2.setShadowVisible(false); 
/*
renderer2.setToolTipGenerator(   
new StandardXYToolTipGenerator(   
StandardXYToolTipGenerator.DEFAULT_TOOL_TIP_FORMAT,   
new SimpleDateFormat("d-MMM-yyyy"), new DecimalFormat("0,000.00")   
)   
);   
*/
plot.setRenderer(1,renderer2);
return chart;
}
private static XYDataset createPriceDataset()
{
// create dataset 1...
TimeSeries series1=new TimeSeries("Price");
series1.add(new Day(2,MonthConstants.JANUARY,2002),95.565);
series1.add(new Day(3,MonthConstants.JANUARY,2002),95.640);
series1.add(new Day(4,MonthConstants.JANUARY,2002),95.710);
series1.add(new Day(7,MonthConstants.JANUARY,2002),95.930);
series1.add(new Day(8,MonthConstants.JANUARY,2002),95.930);
series1.add(new Day(9,MonthConstants.JANUARY,2002),95.960);
series1.add(new Day(10,MonthConstants.JANUARY,2002),96.055);
series1.add(new Day(11,MonthConstants.JANUARY,2002),96.335);
return new TimeSeriesCollection(series1);
}
private static IntervalXYDataset createVolumeDataset()
{
// create dataset 2...
TimeSeries series1=new TimeSeries("Volume");
series1.add(new Day(2,MonthConstants.JANUARY,2002),41020);
series1.add(new Day(3,MonthConstants.JANUARY,2002),45586);
series1.add(new Day(4,MonthConstants.JANUARY,2002),81672);
series1.add(new Day(7,MonthConstants.JANUARY,2002),81975);
series1.add(new Day(8,MonthConstants.JANUARY,2002),79692);
series1.add(new Day(9,MonthConstants.JANUARY,2002),53187);
series1.add(new Day(10,MonthConstants.JANUARY,2002),87929);
series1.add(new Day(11,MonthConstants.JANUARY,2002),107047);
return new TimeSeriesCollection(series1);
}
String getYLabel(String Text)
{
String Result="";
for (int i=0;i<Text.length();i++) Result+=Text.charAt(i)+(i<Text.length()-1?"\u2009":"");
//    Out(Result);
return Result;
}
private static void out(String message) { System.out.print(message); }
private static void Out(String message) { System.out.println(message); }
// Create the GUI and show it. For thread safety, this method should be invoked from the event-dispatching thread.
static void Create_And_Show_GUI()
{
final PriceVolume_Chart demo=new PriceVolume_Chart("Price Volume Chart Demo");
JFrame frame=new JFrame("Time_Series_Chart Frame");
frame.add(demo);
frame.addWindowListener( new WindowAdapter()
{
public void windowActivated(WindowEvent e) { }
public void windowClosed(WindowEvent e) { }
public void windowClosing(WindowEvent e) { if (EXIT_ON_CLOSE_B) System.exit(0); }
public void windowDeactivated(WindowEvent e) { }
public void windowDeiconified(WindowEvent e) { demo.repaint(); }
public void windowGainedFocus(WindowEvent e) { demo.repaint(); }
public void windowIconified(WindowEvent e) { }
public void windowLostFocus(WindowEvent e) { }
public void windowOpening(WindowEvent e) { demo.repaint(); }
public void windowOpened(WindowEvent e) { }
public void windowResized(WindowEvent e) { demo.repaint(); }
public void windowStateChanged(WindowEvent e) { demo.repaint(); }
});
frame.pack();
frame.setLocationRelativeTo(null);
frame.setVisible(true);
}
public static void main(String[] args)
{
// Schedule a job for the event-dispatching thread : creating and showing this application's GUI.
SwingUtilities.invokeLater(new Runnable() { public void run() { Create_And_Show_GUI(); } });
}
}

The tooltip for "Price" is working, but I don't know how to make the tooltip for "Volume" work or how to customize the "Price" tooltip format so it won't show 12:00 AM. Can someone show me?

It looks like your example derives from PriceVolumeDemo1.java, a variation of which is seen here. Dating to 2002, the example uses a much earlier API.

Invoking the current version's setDefaultToolTipGenerator() method works as expected. Modifying renderer2 is straightforward; but "to customize the Price tooltip format so it won't show 12:00 AM" requires accessing the generator installed by your chosen ChartFactory. Note the use of format factories to simplify localization for both tool tips and axes.

XYToolTipGenerator generator = new StandardXYToolTipGenerator(
StandardXYToolTipGenerator.DEFAULT_TOOL_TIP_FORMAT,
DateFormat.getDateInstance(), NumberFormat.getCurrencyInstance()
);
…
plot.getRenderer().setDefaultToolTipGenerator(generator);
renderer2.setDefaultToolTipGenerator(generator);
…
rangeAxis1.setNumberFormatOverride(NumberFormat.getCurrencyInstance());
rangeAxis2.setNumberFormatOverride(NumberFormat.getNumberInstance());