Farm

foreksempel/src/main/java/of5_2/kode/Farm.java

+package of5_2.kode;
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.List;
+
+
+public class Farm {
+
+    private List<Animal> animals = new ArrayList<>();
+
+    public void addAnimal(Animal animal){
+        if(animals.contains(animal)){
+            throw new IllegalArgumentException("Animal already added");
+
+        }
+        animals.add(animal);
+    }
+
+    
+    public List<Animal> getAnimals(){
+        return new ArrayList<>(animals);
+    }
+
+    public int numberOfAnimals(){
+        return this.animals.size();
+    }
+
+    public Animal getAnimal(int index){
+        return animals.get(index);
+    }
+
+    public static void main(String[] args) {
+        Dog Ludo = new Dog("Ludo", 2);
+        Chicken Albert = new Chicken("Albert", 1);
+        Dog Ollie = new Dog("Ollie", 6);
+        Dog Buddy = new Dog("Buddy", 8);
+        Chicken Ringo = new Chicken("Ringo", 6);
+        Chicken Kjell = new Chicken("Kjell", 5);
+
+        List<Animal> animals = new ArrayList<>(List.of(
+            Ludo, Albert, Ollie, Buddy, Ringo, Kjell
+            ));
+
+        Farm farm = new Farm();
+        farm.addAnimal(animals.get(0));
+        farm.addAnimal(animals.get(1));
+        farm.addAnimal(animals.get(2));
+        farm.addAnimal(animals.get(3));
+        farm.addAnimal(animals.get(4));
+        farm.addAnimal(animals.get(5));
+
+
+        
+
+
+    }
+}