ocp_example1.java

interface Video{
  public void play();
}

class Netflix{
  public Video search(String searchQuery){
    //.. implement search function
  }
}

class Hulu{
  public Video search(String searchQuery){
    //.. implement search function
  }
}

class AmazonVideo{
  public Video search(String searchQuery){
    //.. implement search function
  }
}

class Hbo{
  public Video search(String searchQuery){
    //.. implement search function
  }
}

class CentralVideoStreamingPlatform{
  
  public void add(Netflix netflix){}
  public void add(Hulu hulu){}
  public void add(AmazonVideo amazonVideo){}
  public void add(Hbo hbo){}

  public Video searchVideo(String searchQuery){
    //.. implement search fucntion
  }

  public void play(Video selectedVideo){}
  
  private ArrayList<VideoStreamingPlatform> platforms = new ArrayList<VideoStreamingPlatform>(); 
}