buh

src/main/java/com/zipcodewilmington/generic/group/Group.java

 import com.zipcodewilmington.generic.identifiables.IdentifiableInterface;
 
 import java.io.Serializable;
+import java.util.ArrayList;
 import java.util.List;
 import java.util.function.Predicate;
 
  */
 public class Group<TypeOfId extends Serializable,TypeOfEntity extends IdentifiableInterface<TypeOfId>>
         extends AbstractGroup<TypeOfId, TypeOfEntity>{
+    private List<TypeOfEntity> group = new ArrayList<>();
+
     @Override
     public Integer count() {
-        return null;
+        return group.size();
     }
 
     @Override
     public void insert(TypeOfEntity object) {
-
+        group.add(object);
     }
 
     @Override
-    public void delete(TypeOfId object) {
+    public void delete(TypeOfEntity object) {
+        group.remove(object);
 
     }
 
     @Override
-    public void delete(TypeOfEntity serializable) {
-
+    public void delete(TypeOfId serializable) {
+        group.remove(serializable);
     }
 
     @Override
     public Boolean has(TypeOfEntity object) {
-        return null;
+        return group.contains(object);
     }
 
     @Override
     public Boolean has(TypeOfId serializable) {
-        return null;
+        return group.contains(serializable);
     }
 
     @Override