Fixed Error:(6, 8) java: class algorithm is public, should be declared in a file named algorithm.java. Inside file PrimeFactorization, the name of public class was wrong.

DataStructures/Trees/LevelOrderTraversalQueue.java

@@ -19,11 +19,9 @@ public class LevelOrderTraversalQueue {
         }
     }
 
-    Node root;
-
     /* Given a binary tree. Print its nodes in level order
      using array for implementing queue  */
-    void printLevelOrder() {
+    void printLevelOrder(Node root) {
         Queue<Node> queue = new LinkedList<Node>();
         queue.add(root);
         while (!queue.isEmpty()) {