In this lab our goal was to use movable interface to create 3 classes that implements car, plane, and ship. after we create these 3 classes we then had to write a program that allows a polymorphically to process an array of Movable by calling the interface methods. this lab was a bit challenging but with the help of my group members we figured it out.

package Lab4;

   public interface Movable {

   public void moveForward();

   public void moveBackward();

   public void stop();

   public void moveLeft();

   public void moveRight();
}
    package Lab4;
    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 turns left");

}
      public void moveRight()

 {

      System.out.println("Car turns right");

}
}
      package Lab4;
      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");

}
}
        package Lab4;
        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");

}
}
     package Lab4;
          public class MovableTest {
          public static void main(String[] args) {
         Movable[] movableobject = new Movable[3];

         movableobject[0] = new Plane();

         movableobject[0].moveForward();

         movableobject[0].moveBackward();

         movableobject[0].stop();

         movableobject[0].moveLeft();

         movableobject[0].moveRight();
           System.out.println("---------------------");
         movableobject[1] = new Car();

         movableobject[1].moveForward();

         movableobject[1].moveBackward();

         movableobject[1].stop();

         movableobject[1].moveLeft();

         movableobject[1].moveRight();
            System.out.println("---------------------");
         movableobject[2] = new Ship();

         movableobject[2].moveForward();

         movableobject[2].moveBackward();

         movableobject[2].stop();

         movableobject[2].moveLeft();

         movableobject[2].moveRight();

}
}