import com.imsl.chart.*; public class Intro2 extends JFrameChart { public Intro2() { Chart chart = getChart(); AxisXY axis = new AxisXY(chart); double y[] = {4, 2, 3, 9}; new Data(axis, y); chart.getBackground().setFillColor(java.awt.Color.green); axis.getAxisX().getMajorTick().setLineWidth(2.0); } public static void main(String argv[]) { new Intro2().setVisible(true); } }