j2me 1

import javax.microedition.lcdui.AlertType;
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.TextBox;
import javax.microedition.midlet.MIDlet;
import javax.microedition.midlet.MIDletStateChangeException;


public class gameStart extends MIDlet implements CommandListener{

	public Command c1;
	public Command c2;
	public Display d;
	public Form f;
	public TextBox tb;
	public gameStart(){
	
			d=Display.getDisplay(this);
		}
	
	public void destroyApp(boolean arg0) throws MIDletStateChangeException {
	}

	public void pauseApp() {
		
	}

	public void startApp() throws MIDletStateChangeException {
		Form f=new Form("声音测试");
		f.addCommand(new Command("警报", Command.SCREEN, 1));
		f.addCommand(new Command("警报2", Command.SCREEN, 1));
		f.addCommand(new Command("警报3", Command.SCREEN, 1));
		f.addCommand(new Command("警报4", Command.SCREEN, 1));
		f.setCommandListener(this);
		d.setCurrent(f);
	}

	public void commandAction(Command c, Displayable ds) {
		String cmd=c.getLabel();
		if(cmd.equals("警报2"))
		{
			AlertType.ALARM.playSound(d);
		}else if(cmd.equals("警报4")){
			AlertType.WARNING.playSound(d);
		}
	}

	
}