/* * * Copyright ? 2007 Sun Microsystems, Inc. All rights reserved. * Use is subject to license terms. */package example.tilepuzzle;import javax.microedition.lcdui.*;public class Options extends Form implements CommandListener {    boolean reversed;    boolean funny;    boolean hard;    Command ok;    Command cancel;    Display dpy;    Displayable prev;    ChoiceGroup cg1;    ChoiceGroup cg2;    boolean[] scratch;    Options(Display dpy_, Displayable prev_) {        super("Options");        dpy = dpy_;        prev = prev_;        scratch = new boolean[2];        // set up default values        reversed = false;        funny = false;        hard = true;        cg1 = new ChoiceGroup(null, Choice.MULTIPLE);        cg1.append("reverse arrows", null);        cg1.append("funny shuffle", null);        append(cg1);        // REMIND should use a label here        append("level:");        cg2 = new ChoiceGroup(null, Choice.EXCLUSIVE);        cg2.append("easy", null);        cg2.append("hard", null);        append(cg2);        loadUI();        ok = new Command("OK", Command.OK, 0);        cancel = new Command("Cancel", Command.CANCEL, 1);        addCommand(ok);        addCommand(cancel);        setCommandListener(this);    }    public void commandAction(Command c, Displayable d) {        if (c == ok) {            readUI();        } else if (c == cancel) {            loadUI();        }        dpy.setCurrent(prev);    }    void loadUI() {        cg1.setSelectedIndex(0, reversed);        cg1.setSelectedIndex(1, funny);        cg2.setSelectedIndex((hard ? 1 : 0), true);    }    void readUI() {        reversed = cg1.isSelected(0);        funny = cg1.isSelected(1);        hard = cg2.isSelected(1);    }}