private access specifier

hi all,
there r couple of of questions.

Question 1)
here is one interview question.

Can u override variables?
pl explain
Question 2)can anybody explain me how a servlet containerhandles multiple request from diff clients
when
case a)there is only one instance in pool and there r 1000 requests
  sub case1: if servlet method is synchronised.(SingleThreadModel interface)
  sub case2: non synchronised service

case b)there r 100 instance of servlet in pool and 1000 requests
and non synchronised service

as wrox book says
it can adopt 2 methods.
1)instance pooling
2)request serialization
bot for syn service method
is this right?


Question 3)
here is some code which tests the private access specifiers
class inner_one's constructor is private and one of its method is private
it is still accessible by inner_two
how?
is private access specifier does't apply to inner classes?
public class private_test{
 public class inner_one{
 private inner_one(){
 }
 private void inner_amethod(){
 }
}
public class inner_two{
 inner_two(){
 inner_one in1 = new inner_one();
 in1.inner_amethod();
 }
 }
}




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