Method leafNodes

TreeBoundaryTraversalBinaryTree.java:42–51

(Node node, ArrayList<Integer> list)

	}
	
	void leafNodes(Node node, ArrayList<Integer> list)
	{
	    if(node.left==null && node.right==null) 
	    {
	        list.add(node.data);
	        return;
	    }
	    if(node.left!=null) leafNodes(node.left,list);
	    if(node.right!=null) leafNodes(node.right,list);
	}
}