Lab 4 Interface

Interface

Lab 4 procedures:

You are give the following interface Movable():

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

Base on the Movable interface create three classes: Car(), Plane(), and Ship() that implement it. After that, create a program that will polymorphically process an array of Movable by calling each of the interface methods, after creating an object for each one of the classes. Implement the classes in such a way that the output is:

Plane flying forward
Plane taxiing backward
Plane landed
Plane flying left
Plane flying right
---------------------
Car drives forward
Car drives backward
Car parked
Car turns left
Car turns right
---------------------
Ship navigates forward
Ship navigates backward
Ship docked
Ship navigates left
Ship navigates right
---------------------

Overview:

In this lab we were give a Interfaces in which we added appropriate so we can display the message that was wanted by the client.

Code:

Main class

package Lab4;

public class Lab4 {
	public static void main(String[] args)
	{
		Movable[] actions = new Movable[3];
		actions[0] = new Plane();
		actions[1] = new Car();
		actions[2] = new Ship();

		for (Movable movable : actions)
		{
			movable.moveFoward();
			movable.moveFoward();
			movable.stop();
			movable.moveLeft();
			movable.moveRight();
			System.out.println("*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*");

		}
	}

}

Movable

package Lab4;

public interface Movable {

	void moveFoward();
	void moveBackward();
	void stop();
	void moveLeft();
	void moveRight();

}

Plane class

package Lab4;

public class Plane implements Movable {

	@Override
	public void moveFoward() 
	{
		System.out.println("Plane flying forward");
	}

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

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

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

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

}

Car Class

package Lab4;

public class Car implements Movable {

	@Override
	public void moveFoward() 
	{
		System.out.println("Car drives foward");
	}

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

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

	@Override
	public void moveLeft() 
	{
		System.out.println("Car turns left");
	}

	@Override
	public void moveRight() 
	{
		System.out.println("Car turns right");
	}

}

Ship Class

package Lab4;

public class Ship implements Movable {

	@Override
	public void moveFoward() 
	{
		System.out.println("Ship navigates forward");
	}

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

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

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

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

}

Screenshots: