Method setLeft

src/java/org/apache/poi/util/BinaryTree.java:1895–1898

Set this node's left node @param node the new left node @param index _KEY or _VALUE

(Node node, int index)

         * @param index _KEY or _VALUE
         */
        public void setLeft(Node node, int index)
        {
            _left[ index ] = node;
        }

        /**
         * get the left node