SwingFunctionPlotter.java

import com.mindfusion.charting.FunctionSeries;
import com.mindfusion.charting.swing.LineChart;

import javax.swing.*;
import java.awt.*;

public class SwingFunctionPlotter extends JFrame {
    private static final long serialVersionUID = 1L;

    public static void plotFunction(String function) {
        SwingUtilities.invokeLater(new Runnable() {
            public void run() {
                try {
                    new SwingFunctionPlotter(function).setVisible(true);
                }
                catch(Exception e) {
                    e.printStackTrace();
                }
            }
        });
    }

    protected SwingFunctionPlotter(String function) {
        setDefaultCloseOperation(EXIT_ON_CLOSE);
        setSize(650, 400);
        setTitle("Java Swing Library for Charts and Gauges: FunctionSeries");

        getContentPane().add(initializeChart(function), BorderLayout.CENTER);
    }

    private LineChart initializeChart(String function) {
        LineChart lineChart = new LineChart();
        FunctionSeries series1;
        try {
            series1 = new FunctionSeries(function,1000, -20, 20);
            series1.setTitle("Current function");
            lineChart.getSeries().add(series1);
        }
        catch(Exception e) {
            e.printStackTrace();
        }
        return lineChart;
    }
}