Write the definition of a class counter containing:

1. an instance variable named counter of type int.
2. an instance variable named limit of type int.
3. a static int variable named ncounters which is initialized to 0.
4. a constructor taking two int parameters that assigns the first one to counter and the second one to limit. it also adds one to the static variable ncounters.
5. a method named increment. it does not take parameters or return a value; if the instance variable counter is less than limit, increment just adds one to the instance variable counter.
6. a method named decrement that also doesn't take parameters or return a value; if counter is greater than zero, it just subtracts one from the counter.
7. a method named getvalue that returns the value of the instance variable counter.
8. a static method named getncounters that returns the value of the static variable ncounters.