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public class ViewModerationChartAction extends ActionSupport {

	private JFreeChart chart;

	public String execute() throws Exception {
		// chart creation logic...
		XYSeries dataSeries = new XYSeries(null);new Integer(1)); //pass a key for this serie
		for (int i = 0; i <= 100; i++) {
			dataSeries.add(i, RandomUtils.nextInt());
		}
		XYSeriesCollection xyDataset = new XYSeriesCollection(dataSeries);

		ValueAxis xAxis = new NumberAxis("Raw Marks");
		ValueAxis yAxis = new NumberAxis("Moderated Marks");

		// set my chart variable
		chart =
			new JFreeChart(
				"Moderation Function",
				JFreeChart.DEFAULT_TITLE_FONT,
				new XYPlot(
					xyDataset,
					xAxis,
					yAxis,
					new StandardXYItemRenderer(StandardXYItemRenderer.LINES)),
				false);
		chart.setBackgroundPaint(java.awt.Color.white);

		return super.SUCCESS;
	}

	public JFreeChart getChart() {
		return chart;
	}

}