J2ME程序的奇怪现象
我周日写的程序，当时运行是没有问题的。今天运行奇了怪出问题。我看了代码没有问题就是出异常。代码如下<div style="border-right: #cccccc 1px solid; padding-right: 5px; border-top: #cccccc 1px solid; padding-left: 4px; font-size: 13px; padding-bottom: 4px; border-left: #cccccc 1px solid; width: 98%; padding-top: 4px; border-bottom: #cccccc 1px solid; background-color: #eeeeee;">http://www.blogjava.net/Images/OutliningIndicators/None.gifimport javax.microedition.lcdui.Command;
http://www.blogjava.net/Images/OutliningIndicators/None.gifimport javax.microedition.lcdui.CommandListener;
http://www.blogjava.net/Images/OutliningIndicators/None.gifimport javax.microedition.lcdui.Display;
http://www.blogjava.net/Images/OutliningIndicators/None.gifimport javax.microedition.lcdui.Displayable;
http://www.blogjava.net/Images/OutliningIndicators/None.gifimport javax.microedition.lcdui.Form;
http://www.blogjava.net/Images/OutliningIndicators/None.gifimport javax.microedition.midlet.MIDlet;
http://www.blogjava.net/Images/OutliningIndicators/None.gifimport javax.microedition.midlet.MIDletStateChangeException;
http://www.blogjava.net/Images/OutliningIndicators/None.gif
http://www.blogjava.net/Images/OutliningIndicators/None.gif
http://www.blogjava.net/Images/OutliningIndicators/ExpandedBlockStart.gifhttp://www.blogjava.net/Images/OutliningIndicators/ContractedBlock.gifpublic class TestExit extends MIDlet implements CommandListener http://www.blogjava.net/Images/dot.gif{
http://www.blogjava.net/Images/OutliningIndicators/InBlock.gif private Display display;
http://www.blogjava.net/Images/OutliningIndicators/InBlock.gif private Form form;
http://www.blogjava.net/Images/OutliningIndicators/InBlock.gif private final static Command cmd_exit=new Command("EXit",Command.EXIT,1);
http://www.blogjava.net/Images/OutliningIndicators/InBlock.gif
http://www.blogjava.net/Images/OutliningIndicators/ExpandedSubBlockStart.gifhttp://www.blogjava.net/Images/OutliningIndicators/ContractedSubBlock.gif public TestExit() http://www.blogjava.net/Images/dot.gif{
http://www.blogjava.net/Images/OutliningIndicators/InBlock.gif display=Display.getDisplay(this);
http://www.blogjava.net/Images/OutliningIndicators/InBlock.gif form=new Form("Exit");
http://www.blogjava.net/Images/OutliningIndicators/ExpandedSubBlockEnd.gif }
http://www.blogjava.net/Images/OutliningIndicators/InBlock.gif
http://www.blogjava.net/Images/OutliningIndicators/ExpandedSubBlockStart.gifhttp://www.blogjava.net/Images/OutliningIndicators/ContractedSubBlock.gif protected void destroyApp(boolean arg0) throws MIDletStateChangeException http://www.blogjava.net/Images/dot.gif{
http://www.blogjava.net/Images/OutliningIndicators/InBlock.gif
http://www.blogjava.net/Images/OutliningIndicators/ExpandedSubBlockEnd.gif }
http://www.blogjava.net/Images/OutliningIndicators/InBlock.gif
http://www.blogjava.net/Images/OutliningIndicators/ExpandedSubBlockStart.gifhttp://www.blogjava.net/Images/OutliningIndicators/ContractedSubBlock.gif protected void pauseApp() http://www.blogjava.net/Images/dot.gif{
http://www.blogjava.net/Images/OutliningIndicators/InBlock.gif
http://www.blogjava.net/Images/OutliningIndicators/ExpandedSubBlockEnd.gif }
http://www.blogjava.net/Images/OutliningIndicators/InBlock.gif
http://www.blogjava.net/Images/OutliningIndicators/ExpandedSubBlockStart.gifhttp://www.blogjava.net/Images/OutliningIndicators/ContractedSubBlock.gif protected void startApp() throws MIDletStateChangeException http://www.blogjava.net/Images/dot.gif{
http://www.blogjava.net/Images/OutliningIndicators/InBlock.gif form.addCommand(cmd_exit);
http://www.blogjava.net/Images/OutliningIndicators/InBlock.gif form.setCommandListener(this);
http://www.blogjava.net/Images/OutliningIndicators/InBlock.gif display.setCurrent(form);
http://www.blogjava.net/Images/OutliningIndicators/InBlock.gif
http://www.blogjava.net/Images/OutliningIndicators/ExpandedSubBlockEnd.gif }
http://www.blogjava.net/Images/OutliningIndicators/InBlock.gif
http://www.blogjava.net/Images/OutliningIndicators/ExpandedSubBlockStart.gifhttp://www.blogjava.net/Images/OutliningIndicators/ContractedSubBlock.gif public void commandAction(Command c, Displayable d) http://www.blogjava.net/Images/dot.gif{
http://www.blogjava.net/Images/OutliningIndicators/ExpandedSubBlockStart.gifhttp://www.blogjava.net/Images/OutliningIndicators/ContractedSubBlock.gif if(c==cmd_exit)http://www.blogjava.net/Images/dot.gif{
http://www.blogjava.net/Images/OutliningIndicators/InBlock.gif System.out.println("in");
http://www.blogjava.net/Images/OutliningIndicators/ExpandedSubBlockStart.gifhttp://www.blogjava.net/Images/OutliningIndicators/ContractedSubBlock.gif try http://www.blogjava.net/Images/dot.gif{
http://www.blogjava.net/Images/OutliningIndicators/InBlock.gif destroyApp(false);
http://www.blogjava.net/Images/OutliningIndicators/InBlock.gif notifyAll();
http://www.blogjava.net/Images/OutliningIndicators/ExpandedSubBlockStart.gifhttp://www.blogjava.net/Images/OutliningIndicators/ContractedSubBlock.gif } catch (MIDletStateChangeException e) http://www.blogjava.net/Images/dot.gif{
http://www.blogjava.net/Images/OutliningIndicators/InBlock.gif e.printStackTrace();
http://www.blogjava.net/Images/OutliningIndicators/ExpandedSubBlockEnd.gif }
http://www.blogjava.net/Images/OutliningIndicators/ExpandedSubBlockEnd.gif }
http://www.blogjava.net/Images/OutliningIndicators/ExpandedSubBlockEnd.gif }
http://www.blogjava.net/Images/OutliningIndicators/InBlock.gif
http://www.blogjava.net/Images/OutliningIndicators/ExpandedBlockEnd.gif}
http://www.blogjava.net/Images/OutliningIndicators/None.gif
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