8. Iterators

• An Iterator is an object that enables you to

  • traverse through a collection, and

  • remove elements from the collection

• To get an Iterator for a collection, call its iterator method. For example,

  
  for ( Iterator<Integer> it = c.iterator(); it.hasNext(); ) {
      if (!cond(it.next())) {
          it.remove();
      }
  }