src/java.base/share/classes/java/util/Arrays.java

*** 1,7 ****
  /*
!  * Copyright (c) 1997, 2014, Oracle and/or its affiliates. All rights reserved.
   * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   *
   * This code is free software; you can redistribute it and/or modify it
   * under the terms of the GNU General Public License version 2 only, as
   * published by the Free Software Foundation.  Oracle designates this
--- 1,7 ----
  /*
!  * Copyright (c) 1997, 2016, Oracle and/or its affiliates. All rights reserved.
   * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   *
   * This code is free software; you can redistribute it and/or modify it
   * under the terms of the GNU General Public License version 2 only, as
   * published by the Free Software Foundation.  Oracle designates this
*** 4401,4410 ****
--- 4401,4439 ----
  
          @Override
          public void sort(Comparator<? super E> c) {
              Arrays.sort(a, c);
          }
+ 
+         @Override
+         public Iterator<E> iterator() {
+             return new ArrayItr<>(a);
+         }
+     }
+ 
+     private static class ArrayItr<E> implements Iterator<E> {
+         private int cursor;
+         private final E[] a;
+ 
+         ArrayItr(E[] a) {
+             this.a = a;
+         }
+ 
+         @Override
+         public boolean hasNext() {
+             return cursor < a.length;
+         }
+ 
+         @Override
+         public E next() {
+             int i = cursor;
+             if (i >= a.length) {
+                 throw new NoSuchElementException();
+             }
+             cursor = i + 1;
+             return a[i];
+         }
      }
  
      /**
       * Returns a hash code based on the contents of the specified array.
       * For any two {@code long} arrays {@code a} and {@code b}