JFreeChart Line charts

A line chart or line graph is a type of chart which displays information as a series of data points called 'markers' connected by straight line segments.

import org.jfree.chart.ChartFactory;
import org.jfree.chart.ChartFrame;
import org.jfree.chart.JFreeChart;
import org.jfree.chart.plot.PlotOrientation;
import org.jfree.data.category.DefaultCategoryDataset;

public class Main {
 public static void main(String args[]) {

  String title = "Line chart demo";

  DefaultCategoryDataset dataset = new DefaultCategoryDataset();
  dataset.addValue(500, "Revenue", "2009");
  dataset.addValue(550, "Revenue", "2010");
  dataset.addValue(498, "Revenue", "2011");
  dataset.addValue(325, "Revenue", "2012");
  dataset.addValue(670, "Revenue", "2013");
  dataset.addValue(710, "Revenue", "2014");

  /* create chart */
  JFreeChart chart = ChartFactory.createLineChart(title, null,
    "Revenue in M$", dataset, PlotOrientation.VERTICAL, false,
    true, false);

  /* create and display chart on frame */
  ChartFrame frame = new ChartFrame("JFreeChart Demo", chart);
  frame.setVisible(true);
  frame.pack();

 }
}

Output

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