[jCharts-users] Swing panel : chart not working!!!

[Ravikiran <rav...@ya...>]

hello,
             Plz tell me whats wrong with this code.The chart appears momentarily and vanishes.    
 
 
import org.jCharts.chartData.ChartDataException;
import org.jCharts.chartData.PieChartDataSet;
import org.jCharts.nonAxisChart.PieChart2D;
import org.jCharts.properties.*;
import javax.swing.*;
import java.awt.event.*;
import java.awt.*;
 
    public class test
    {
           JFrame frame = new JFrame();
           MenuBar jmb = new MenuBar();
           Menu file = new Menu("FILE");
           MenuItem chart = new MenuItem("chart") ;
           //chart.addActionListener(new actionlistener(){
          // public void actionPerformed(ActionEvent e){
           //SwingDemo s = new SwingDemo(12,34,56);
           //};
           public test()
           {
                  file.add(chart);
                  jmb.add(file);
                  frame.setMenuBar(jmb);
                  frame.setSize(new Dimension(200,300));
                  frame.setVisible(true);
                  chart.addActionListener(new ActionListener(){
                  public void actionPerformed(ActionEvent e){
                  try{
                  SwingDemo s = new SwingDemo(12,34,56);
                  }catch(ChartDataException ce){}
                   catch(PropertyException pe)  {}
                 }});
           }
           public static void main(String args[])
           {
                  test t = new test();
           }
    }

		
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