This is the code from the preview excercise. Write the answer for this exercise in C++.

Write the implementation (.cpp file) of the Counter class from the previous exercise. Here is the full specification of the class: A data member counter of type int .A constructor that takes one int argument and assigns its value to counter A function called increment that accepts no parameters and returns no value. increment adds one to the counter data member. A function called decrement that accepts no parameters and returns no value. decrement subtracts one to the counter data member. A function called getValue that accepts no parameters. It returns the value of the instance variable counter