Method toString

guava/src/com/google/common/collect/Iterators.java:290–301

Returns a string representation of {@code iterator}, with the format {@code [e1, e2, ..., en]}. The iterator will be left exhausted: its {@code hasNext()} method will return {@code false}.

(Iterator<?> iterator)

   * The iterator will be left exhausted: its {@code hasNext()} method will return {@code false}.
   */
  public static String toString(Iterator<?> iterator) {
    StringBuilder sb = new StringBuilder().append('[');
    boolean first = true;
    while (iterator.hasNext()) {
      if (!first) {
        sb.append(", ");
      }
      first = false;
      sb.append(iterator.next());
    }
    return sb.append(']').toString();
  }

  /**
   * Returns the single element contained in {@code iterator}.