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Friday 15 June 2012

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Ticker in JAVA MIDlet

    Ticker object can be associated with a subclass of Screen objects. Ticker is an object in the form of walking or writing a line of text that can discrolling constantly on display. Direction and speed of the Ticker can not be set manually, because it has been governed by the system and ongoing Ticker can not be stopped by the application. The following is a sample program Ticker.

       1     import javax.microedition.midlet.*;
       2     import javax.microedition.lcdui.*;
       3
       4     public class TickerDemo extends MIDlet
implements CommandListener
       5     {
       6               private Form  form;
       7               private Ticker  ticker;
       8               private Display  display;
       9               private Command  cmdKeluar;
      10
      11             public TickerDemo () {
      12             }
      13
      14             public void startApp()        {
      15             form = new Form("Latihan Membuat Ticker");
      16             ticker = new Ticker("Lab Sist Komp Lanjut");
      17             form.setTicker(ticker);
      18             display=Display.getDisplay(this);
      19             display.setCurrent(form);
      20             cmdKeluar = new Command ("Keluar", Command.EXIT, 0);
      21             form.addCommand(cmdKeluar);
      22             form.setCommandListener(this);
      23              }
      24
      25             public void pauseApp()        {
      26             }
      27
      28             public void destroyApp(boolean unconditional)              {
      29             notifyDestroyed();
      30             }
      31
      32             public void commandAction(Command c, Displayable d) {
      33             if (c == cmdKeluar)  {
      34             destroyApp(true);
      35             }
      36              }
      37     }


Output : 
 

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