textfieldmidlet.java

j2me的程序

import javax.microedition.midlet.*;
import javax.microedition.lcdui.*;
// A first MIDlet with simple text and a few commands.
public class TextFieldMIDlet extends MIDlet implements CommandListener{

  private Command exitCommand;
  private TextField aTextField;
  private Display display;

  public TextFieldMIDlet() {
    display = Display.getDisplay(this);
    exitCommand = new Command("离开", Command.EXIT, 1);

    aTextField = new TextField("标签","内容",4,TextField.ANY);
  }

  public void startApp() {
    Form aForm = new Form("TextField示范");

    aForm.append(aTextField);
    aForm.addCommand(exitCommand);
    aForm.setCommandListener(this);
    display.setCurrent(aForm);
  }

  public void pauseApp() { }

  public void destroyApp(boolean unconditional) { }

  public void commandAction(Command c, Displayable s) {
    if (c == exitCommand) {
      destroyApp(false);
      notifyDestroyed();
    }

  }

}