?? hellomidlet.java
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import javax.microedition.lcdui.*;import javax.microedition.midlet.*;public class HelloMIDlet extends MIDlet implements CommandListener{ private Display display; private HelloCanvas myCanvas; private Command CMD_EXIT = new Command("退出", Command.SCREEN, 1); public HelloMIDlet() { myCanvas = new HelloCanvas(); display = Display.getDisplay(this); myCanvas.addCommand(CMD_EXIT); myCanvas.setCommandListener(this); } public void startApp() { display.setCurrent(myCanvas); } public void pauseApp() { } public void destroyApp(boolean unconditional) { } public void commandAction(Command cmd, Displayable disp) { if(cmd == CMD_EXIT){ destroyApp(false); notifyDestroyed(); } }}
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