dataset.add(3.0, 4.0, "S1", "C2");
CategoryPlot plot = new CategoryPlot(dataset,
new CategoryAxis("Category"), new NumberAxis("Value"),
new StatisticalLineAndShapeRenderer());
JFreeChart chart = new JFreeChart(plot);
/* BufferedImage image = */ chart.createBufferedImage(300, 200,
null);
success = true;
}
catch (NullPointerException e) {
e.printStackTrace();