import ocean.Fish;
import ocean.SeaWeed;
import ocean.plants.Algae;

public class App {
	public static void main(String[] args) {
		Fish fish = new Fish();
		SeaWeed sea = new SeaWeed();
		Algae alg = new Algae();
	}
}

@@ -207,13 +207,101 @@
 lgae();%0A
+%09%09%0A%09%09// polymorphism%0A%09%09Mac mac1 = new Mac();%0A%09%09Laptop lappy = mac1;%0A%09%09lappy.start();%0A%09%09%0A
 %09%7D%0A%7D%0A

Add polymorphism