refaactor 107

Author: fishercoder1534

src/main/java/com/fishercoder/solutions/_107.java

@@ -10,7 +10,7 @@
 
 public class _107 {
     public static class Solution1 {
-        public List<List<Integer>> levelOrder(TreeNode root) {
+        public List<List<Integer>> levelOrderBottom(TreeNode root) {
             List<List<Integer>> result = new ArrayList();
             if (root == null) {
                 return result;

src/test/java/com/fishercoder/_107Test.java

@@ -22,7 +22,7 @@ public static void setup() {
     public void test1() {
         root = TreeUtils.constructBinaryTree(Arrays.asList(3, 9, 20, null, null, 15, 7));
         TreeUtils.printBinaryTree(root);
-        CommonUtils.printListList(solution1.levelOrder(root));
+        CommonUtils.printListList(solution1.levelOrderBottom(root));
     }
 
 }