你好，J2ME

/** Author: Leng_que* E-mail: [e-mail]* Description: a simple J2ME* Filename: HelloJ2ME.java*/import javax.microedition.midlet.*;import javax.microedition.lcdui.*;public class HelloJ2ME extends MIDlet implements CommandListener{private Display display;private TextBox textBox;private Command cmExit;public HelloJ2ME(){cmExit = new Command("Exit", Command.SCREEN,1);textBox = new TextBox("Text","Hello World!",40,0);textBox.addCommand(cmExit);textBox.setCommandListener(this);} public void startApp(){display = Display.getDisplay(this);display.setCurrent(textBox);}public void pauseApp(){}public void destroyApp(boolean unconditional){}public void commandAction(Command choice,Displayable displayable) {if(choice == cmExit){destroyApp(false);notifyDestroyed();} }}