Portfolio and Stock Manager.java <>jFreeChart.java import java.text.DecimalFormat;import Java.text.ParseException; import java.text.SimpleDateFormat;import java.util.ArrayList;import java.util.Calendar;import java.util.HashMap;import javax.swing.JFrame; import org.jfree.chart.ChartPanel;import org.jfree.chart.JFreeChart; import org.jfree.chart.ChartFactory;import org.jfree.chart.labels.StandardXYToolTipGenerator; import org.jfree.chart.plot.XYPlot;import org.jfree.chart.renderer.xy.XYItemRenderer; import org.jfree.data.time.Day;import org.jfree.data.time.MovingAverage;import org.jfree.data.time.TimeSeries; import org.jfree.data.time.TimeSeriesCollection;import org.jfree.data.xy.XYDataset; public class jFreeChart extends JFrame{/* *Uses the jFreeChart.java library to construct good-looking graphs; *It accepts both Arrays and HashTables. *It is used to produce the moving average plot. * * *For information see jFreeChart’s documentation*/