Write the interface (.h file) of a class GasTank containing:

LANGUAGE: C++

CHALLENGE:

Write the interface (.h file) of a class GasTank containing:

A data member named  amount of type double.
A data member named  capacity of type double.
A constructor that accepts a parameter of type double.
A function named  addGas that accepts a parameter of type double and returns no value.
A function named  useGas that accepts a parameter of type double and returns no value.
A function named  isEmpty that accepts no parameters and returns a boolean value.
A function named  isFull that accepts no parameters and returns a boolean value.
A function named  getGasLevel that accepts no parameters and returns a double.
A function named  fillUp that accepts no parameters and returns a double.