import org.jfree.chart.JFreeChart;
import org.jfree.chart.ChartFactory;
import org.jfree.data.xy.XYSeriesCollection;

import javax.swing.JFrame;
import java.awt.BorderLayout;
import org.jfree.chart.ChartPanel;

public class Test1_1 extends JFrame{
  public static void main(String[] args) {
    Test1_1 frame = new Test1_1();

    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    frame.setBounds(10, 10, 500, 500);
    frame.setTitle("グラフサンプル");
    frame.setVisible(true);
  }

  Test1_1(){
    XYSeriesCollection data = new XYSeriesCollection();
    JFreeChart chart = ChartFactory.createPolarChart("極座標", 
                                                    data,
                                                    true, 
                                                    false, 
                                                    false);

    ChartPanel cpanel = new ChartPanel(chart);
    getContentPane().add(cpanel, BorderLayout.CENTER);
  }
}