chess.java

这是一个Java编写的手机象棋游戏

import javax.microedition.midlet.*;
import javax.microedition.lcdui.*;

public class Chess extends MIDlet
{
	public	static Display	dis=null;
	private static	Chess	instance=null;
	private MainSelect		mainSelect=null;
	public Chess()
	{
		dis=Display.getDisplay(this);
		mainSelect=new MainSelect();
		instance=this;
	}
	private	boolean checkBluetooth()
	{
		try
		{
			Class.forName("javax.bluetooth.LocalDevice");
		}
		catch(Exception ex)
		{
			return false;
		}
		return true;
	}
	public void startApp()
	{
		boolean b = checkBluetooth();
		if(b)
		{
			Alert alert=new Alert("Message","蓝牙正常",null,AlertType.WARNING);
			Chess.dis.setCurrent(alert, mainSelect);
		}
		else
		{
			//显示错误后，再转到主界面
			Alert alert=new Alert("Message","您的手机不支持蓝牙",null,AlertType.WARNING);
			Chess.dis.setCurrent(alert, mainSelect);
		}
	}
	public void pauseApp()
	{
		
	}
	public void destroyApp(boolean b)
	{
		notifyDestroyed();
	}
	public static void quitApp()
	{
		instance.destroyApp(false);
	}
};