A Car is composed of four Wheel thingies. If a car is moving, all its wheels are moving (if nothing else has gone wrong). 2.1 Wheels for Cars Let's first do wheels! 1. You need to define a Wheel...

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Extracted text: A Car is composed of four Wheel thingies. If a car is moving, all its wheels are moving (if nothing else has gone wrong). 2.1 Wheels for Cars Let's first do wheels! 1. You need to define a Wheel class. At the moment, this class should have just a single variable state of type string. Make sure this variable is hidden from those outside the class! 2. Now, within this class, define a public function with the following declaration: void set_wheel_state(string s); This function should take set the state of the wheel to the value passed in as s. 3. Write another function in this class with the following declaration: string get_wheel_state() This should simply return the state of the wheel. After this, you should be able to run Part - 3 of the main function in the starter file. 2.2 Cars on Wheels Once we have a Wheel class, we can use it within our Car class. 1. Define a new class Car. This should have an array of wheels – the size of the array should be 4 since we have only four wheels. Make sure this array is not visible from outside the class. 2. Next, write a function set car to_moving within this class. This function should set the states of all four wheels to "Turning". That's it! 3. Write another function set_car_to_stopped same as above except the state of all four wheels should be set to "Stopped". 4. Finally, write a function print_car_wheels_state in this class which outputs the state of all four wheels in the following format: Car state: - Wheel 0 is Stopped - Wheel 1 is Stopped - Wheel 2 is Stopped - Wheel 3 is Stopped


Extracted text: Of course, if the car is moving, all output lines should have the word Turning there. Make sure you use the get_wheel_state function of the wheel you defined earlier for this. After this, you should be able to run Part - 4 of the main function in the starter file.