Create an interface called ChangeSpeed. Give it a method public void speedUp() and public void slowDown()...

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• Create an interface called ChangeSpeed. Give it a method public void speedUp() and public void slowDown() • Create an abstract class called Vehicle and implement the interface ChangeSpeed • Create a Train, Car and Bicycle class that extend the Vehicle class, resolve any compilation problems • In your main() method create an array of Vehicles. Make about 5 vehicles that are a mix of Train, Car and Bicycle. • Then iterate through the array with a for loop and call the speedUp() and slowDown() methods on each Vehicle. • Look at the solutions ChangeSpeed.java, Vehicle,java, Train.java, Car.java, Bicycle.java and VehicleMain.java. • Create an interface called ChangeSpeed. Give it a method public void speedUp() and public void slowDown() • Create an abstract class called Vehicle and implement the interface ChangeSpeed • Create a Train, Car and Bicycle class that extend the Vehicle class, resolve any compilation problems • In your main() method create an array of Vehicles. Make about 5 vehicles that are a mix of Train, Car and Bicycle. • Then iterate through the array with a for loop and call the speedUp() and slowDown() methods on each Vehicle. • Look at the solutions ChangeSpeed.java, Vehicle,java, Train.java, Car.java, Bicycle.java and VehicleMain.java.

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ChangeSpeed interface interface ChangeSpeed void speedUp void slowDown Vehicle abstract class im... View the full answer