Java Tree.preOrder Examples

Example #1

File: Tree.java Project: USTORG/ECProject

  /** pre order traversal */
  private String preOrder(Node ptr) {
    String prefix = "";
    if (ptr != null) {

      prefix = prefix.trim() + ptr.data;
      preOrder(ptr.left);
      preOrder(ptr.right);
    }

    return prefix;
  }