From 022821f51714708a72c9afa5df17376f9018c4b1 Mon Sep 17 00:00:00 2001
From: Eddiewalsh572 <eddie.walsh572@gmail.com>
Date: Tue, 23 Jun 2026 10:13:00 -0400
Subject: [PATCH] Fix binary tree inorder and postorder traversals

---
 lectures/20-trees/code/introduction/BinaryTree.java | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/lectures/20-trees/code/introduction/BinaryTree.java b/lectures/20-trees/code/introduction/BinaryTree.java
index 366317961..0a05b0501 100644
--- a/lectures/20-trees/code/introduction/BinaryTree.java
+++ b/lectures/20-trees/code/introduction/BinaryTree.java
@@ -96,28 +96,28 @@ private void preOrder(Node node) {
   }
 
   public void inOrder() {
-    preOrder(root);
+    inOrder(root);
   }
 
   private void inOrder(Node node) {
     if (node == null) {
       return;
     }
-    preOrder(node.left);
+    inOrder(node.left);
     System.out.print(node.value + " ");
-    preOrder(node.right);
+    inOrder(node.right);
   }
 
   public void postOrder() {
-    preOrder(root);
+    postOrder(root);
   }
 
   private void postOrder(Node node) {
     if (node == null) {
       return;
     }
-    preOrder(node.left);
-    preOrder(node.right);
+    postOrder(node.left);
+    postOrder(node.right);
     System.out.print(node.value + " ");
   }