Android Question Call dead activity from service

I have two problem
1 - I declare a global variable x as int
when activity was Loaded I inc(x) x= 1

then activity.finish and service still running the problem is th variable x is x = 0 and not x= 1 why ? I declare variable x as int from starter

2 - How can call activity again from service when it finish I use callsub and callsubdelay but not work I set a stub test then call it from service and not work again