How can i draw oneway arrow mark

i wanna a put an arrow symbol at the line.
but my program output showing to arrow symbols one at start and one at end.
so how can remove the arrow symbol at the start.
<%@page import="ChartDirector.*" %>
// Create a XYChart object of size 500 x 320 pixels, with a pale purpule (0xffccff)
// background, a black border, and 1 pixel 3D border effect.
XYChart c = new XYChart(500, 320, 0xffccff, 0x000000, 1);
// Set the plotarea at (55, 45) and of size 420 x 210 pixels, with white background.
// Turn on both horizontal and vertical grid lines with light grey color (0xc0c0c0)
c.setPlotArea(55, 45, 420, 210, 0xffffff, -1, -1, 0xc0c0c0, -1);
// Add a legend box at (55, 25) (top of the chart) with horizontal layout. Use 8 pts
// Arial font. Set the background and border color to Transparent.
c.addLegend(55, 22, false, "", 8).setBackground(Chart.Transparent);
// Add a title box to the chart using 13 pts Times Bold Italic font. The text is
// white (0xffffff) on a purple (0x800080) background, with a 1 pixel 3D border.
c.addTitle("Long Term Server Load", "Times New Roman Bold Italic", 13, 0xffffff
    ).setBackground(0x800080, -1, 1);
// Add a title to the y axis
c.yAxis().setTitle("MBytes");
// Set the labels on the x axis. Rotate the font by 90 degrees.
c.xAxis().setLabels(labels).setFontAngle(90);
// The lengths (radii) and directions (angles) of the vectors
double[] dataR = {2,3};
double[] dataA = {77,30};
// Add a vector layer to the chart using blue (0000CC) color, with vector arrow size
// set to 11 pixels
LineLayer layer1 = c.addLineLayer();
//LineLayer layer1 = c.addLineLayer(dataY0, 0xff3333, "Compound AAA");
layer1.addDataSet(dataY0, 0xff3333, "Close Loop Line");//.setDataSymbol( Chart.LeftTriangleSymbol, 10);
layer1.setXData(dataX0);
layer1.setLineWidth(2);
//layer1.setDataSymbol(Chart.TriangleSymbol, 11);
//layer1.addCustomDataLabel(0, 0, "Start", "Arial Bold");
layer1.addCustomDataLabel(0, 4, "End", "Arial Bold");
// Add a line layer to the chart
LineLayer lineLayer = c.addLineLayer2();
// square symbol
lineLayer.addDataSet(data, 0xcc9966, "Server Utilization").setDataSymbol(
    Chart.SquareSymbol, 7);
lineLayer.setLineWidth(2);
// output the chart
String chart1URL = c.makeSession(request, "chart1");
%>
<html>
<body topmargin="5" leftmargin="5" rightmargin="0">
<div style="font-size:18pt; font-family:verdana; font-weight:bold">
    Trend Line Chart
</div>
<img src='<%=response.encodeURL("getchart.jsp?"+chart1URL)%>'
    usemap="#map1" border="0">
</body>
</html>thank u
shawnak

Just to add to Phil's suggestion, I'm pretty sure that Photoshop installs a nice set of arrow custom shapes. Open up the Preset Manager and go to the Custom Shapes window. Click and hold on the little round button with the triangle in it at the top right near the Done button. That will get you a dropdown menu with all the installed preset files currently recognized by PS. If Arrows is listed highlight that and append it to your current set.
Now you have all sorts of arrows. They can be filled shapes and then add styles, free transform them including rotation and if you wish to go bonkers you can use the arrow tools (direct selection or path selection tools) to really customize the arrows.

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