public Node getPreviousSibling() {
		List<Node> siblings = parentNode.childNodes;
		int index = siblingIndex - 1;
		if (index < 0) {
			return null;
		}
		return siblings.get(index);

	}
public Node getPreviousSibling() {
		List<Node> siblings = parentNode.childNodes;
		int index = siblingIndex - 1;
		if (index < 0) {
			return null;
		}
		return siblings.get(index);

	}
public Node getPreviousSibling ( ) { List < Node > siblings = parentNode . childNodes ; int index = siblingIndex - 1 ; if ( index < 0 ) { return null ; } return siblings . get ( index ) ; }
Returns this node's previous sibling of <b>any</b> type
or <code>null</code> if this is the first sibling.
Returns this node s previous sibling of <b > any< / b > type or <code > null< / code > if this is the first sibling .