class MyRandomService extends Service{
onCreate(, onStart(Intent intent, int started){
//反射獲取到 當前類的名稱
string classname='xxx'
Toast.show(application.當前程序或者線程ID，classname)
}
onDestroy(){}
}
onStart(Intent intent, int started){
fload random=random.next(0,1)
Toast.show(random)
}