import java.util.Iterator;

class VaarArray<T> implements Iterable<T> {

      T [] arr;

      public VaarArray(int strl) {
          arr = (T []) new Object[strl];
      }

      public boolean settInn(T elem) {
          for (int i = 0; i < arr.length; i++) {
              if (arr[i] == null) {
                  arr[i] = elem;
                  return true;
              }
          }
          return false;
      }

      public boolean fjernFraIndex(int n) {
          if (n<0 || n > arr.length) {
              return false; // kunne kastet unntak
          } else if (arr[n] == null) {
              return false;
          } else {
              arr[n] = null;
              return true;
          }
      }

      public Iterator<T> iterator() {
          return new ArrayIterator();
      }

      private class ArrayIterator implements Iterator<T> {
          int pos = 0;

          public boolean hasNext() {
              return pos < arr.length;
          }

          public T next(){
              T returData = arr[teller];
              pos++;
              return returData;
          }
      }


}