Add a method that changes the current speed of the vehicle to a passed-in changeSpeed value, and a method that sets the speed to zero. stop Add two methods to One that takes a number of degrees to turn, and one turn Vehicle. that takes simply either a or a constant. Vehicle.TURN_LEFT Vehicle.TURN_RIGHT Define the two constants accordingly. Add a static method to that returns the highest identification number used so far. Vehicle Add a method to toString Vehicle.
Add a changeSpeed method that changes the current speed of the vehicle to a passed-in value, and a stop method that sets the speed to zero. Add two turn methods to Vehicle. One that takes a number of degrees to turn, and one that takes simply either a Vehicle.TURN_LEFT or a Vehicle.TURN_RIGHT constant. Define the two constants accordingly. Add a static method to Vehicle that returns the highest identification number used so far. Add a toString method to Vehicle.