Working version with DisplayAnimalFoodList

ZooProgram/src/App.java

+import java.util.ArrayList;
+
 public class App {
     public static void main(String[] args) throws Exception {
 
@@ -17,8 +19,10 @@ public class App {
         myZoo.displayfoodRequirements(Rex);
         myZoo.displayfoodRequirements(Pix);
 
-
-
+        ArrayList<Animal> animalFoodReqList = new ArrayList<>();
+        animalFoodReqList.add(Rex);
+        animalFoodReqList.add(Pix);
+        myZoo.displayfoodListRequirements(animalFoodReqList);
 
 
         }

ZooProgram/src/Zoo.java

@@ -21,6 +21,12 @@ public class Zoo {
         System.out.println(animal.getFoodType());
     }
 
+    public void displayfoodListRequirements(ArrayList<Animal>animalList){
+        for (int i=0; i < animalList.size();i++){
+            System.out.println(animalList.get(i).getFoodType());
+        }
+    }
+
     public void displayDetails(Animal animal){
         ArrayList<String> detailList=animal.getDetails();
         for(int i = 0; i < detailList.size();i++){