Method firstKey

src/main/java/gate/util/RBTreeMap.java:281–284

Returns the first (lowest) key currently in this sorted map. @return the first (lowest) key currently in this sorted map. @throws NoSuchElementException Map is empty.

()

    * @throws    NoSuchElementException Map is empty.
    */
  @Override
  public K firstKey() {
      return key(firstEntry());
  }

  /**
    * Returns the last (highest) key currently in this sorted map.