Merge pull request careermonk#10 from AdrianKrebs/master

fixed two compiler errors. missing brace and wrong method argument

Author: careermonk

src/chapter03linkedlists/MergeKSortedLists.java

@@ -23,7 +23,7 @@ public static ListNode mergeKLists(ArrayList<ListNode> lists) {
         }
         //PriorityQueue is a sorted queue
         PriorityQueue<ListNode> pq = new PriorityQueue<>(lists.size(), (ListNode a, ListNode b) -> {
-            if (a.getData() > b.getData) {
+            if (a.getData() > b.getData()) {
                 return 1;
             } else if (a.getData() == b.getData()) {
                 return 0;

src/chapter06trees/CheckAVL.java

@@ -33,6 +33,6 @@ public int getHeight(BinarySearchTreeNode root){
     }
 
     public boolean isAVL(BinarySearchTreeNode root){
-        return isAVL(BinarySearchTreeNode root, Integer.MIN_VALUE, Integer.MAX_VALUE);
+        return isAVL(root, Integer.MIN_VALUE, Integer.MAX_VALUE);
     }
 }