Set new text value to StringItem : StringItem « J2ME « Java Tutorial

1. Java Tutorial
2. J2ME
3. StringItem

import javax.microedition.lcdui.Command;
import javax.microedition.lcdui.CommandListener;
import javax.microedition.lcdui.Display;
import javax.microedition.lcdui.Displayable;
import javax.microedition.lcdui.Form;
import javax.microedition.lcdui.StringItem;
import javax.microedition.midlet.MIDlet;

public class J2MEStringItemExample extends MIDlet implements CommandListener {
  private Display display;

  private Form form = new Form("Quiz");

  private StringItem question = new StringItem("Question: ", "A ?");

  private Command giveup = new Command("Give Up", Command.SCREEN, 1);

  private Command exit = new Command("Exit", Command.EXIT, 1);

  public J2MEStringItemExample() {
    display = Display.getDisplay(this);
    form.addCommand(exit);
    form.addCommand(giveup);
    form.append(question);
    form.setCommandListener(this);
  }

  public void startApp() {
    display.setCurrent(form);
  }

  public void pauseApp() {
  }

  public void destroyApp(boolean unconditional) {
  }

  public void commandAction(Command command, Displayable displayable) {
    if (command == giveup) {
      question.setLabel("Answer: ");
      question.setText("Survivors are not buried.");
      form.removeCommand(giveup);
    } else if (command == exit) {
      destroyApp(false);
      notifyDestroyed();
    }
  }
}

31.4.StringItem
	31.4.1.	Add StringItem to a form
	31.4.2.	StringItem with line break
	31.4.3.	Get Label and text from StringItem
	31.4.4.	Create Form with a list of StringItems
	31.4.5.	Set new text value to StringItem