Description:

In this lab we are given a movable interface code, which we then must use to make an output as shown in the screenshot. We must use this code to create an interface for three classes; a car, a plane, and a ship. The interface will be a polymorphic because it will have the same structure and process, but it will output different message for each class.

Code:

package lab6;

public class MovableStep {
	public static void main(String[] args) {
		Movable[] myMovables = new Movable[3];
		myMovables[0] = new Plane();
		myMovables[1] = new Car();
		myMovables[2] = new Ship();

		for (Movable v: myMovables){
			v.moveForward();
			v.moveBackward();
			v.stop();
			v.moveLeft();
			v.moveRight();
			System.out.println("---------------------");
		}
	}
}

Interface Given code

package lab6;

public interface Movable {
	public void moveForward();
	public void moveBackward();
	public void stop();
	public void moveLeft();
	public void moveRight();

}

Plane

package lab6;

public class Plane implements Movable {
	public void moveForward() {
		System.out.println("Plane flying forward");
	}

	public void moveBackward() {
		System.out.println("Plane taxiing backward");
	}

	public void stop() {
		System.out.println("Plane landed");
	}

	public void moveLeft() {
		System.out.println("Plane flying left");
	}

	public void moveRight() {
		System.out.println("Plane flying right");
	}
}

Car

package lab6;

public class Car implements Movable {
	public void moveForward() {
		System.out.println("Car drives forward");
	}

	public void moveBackward() {
		System.out.println("Car drives backward");
	}

	public void stop() {
		System.out.println("Car parked");
	}

	public void moveLeft() {
		System.out.println("Car drives left");
	}

	public void moveRight() {
		System.out.println("Car drives right");
	}

}

Ship

package lab6;

public class Ship implements Movable {
	public void moveForward() {
		System.out.println("Ship navigates forward");
	}

	public void moveBackward() {
		System.out.println("Ship navigates backward");
	}

	public void stop() {
		System.out.println("Ship docked");
	}

	public void moveLeft() {
		System.out.println("Ship navigates left");
	}

	public void moveRight() {
		System.out.println("Ship navigates right");
	}
}

Screenshot: