7.(15 pts.) Consider the class.Counter below: public class Counter t Counter) (val 0;) void up() Ival++ void down() (val- int getVal() (return val: public String toString) ( return "A counter with value "val: protected int val a)Define a class BoundedCounter that extends Counter. It has a member limit. No up operation can go beyond limit and no down operation can go below 0 Make sure it has a constructor and overrides the toString method b) Can a BoundedCounter object be passed to a method that expects a Counter object? c) Can a Counter object be passed to a method that expects a BoundedCounter object