diff --git a/algorithms-modules/algorithms-miscellaneous-7/README.md b/algorithms-modules/algorithms-miscellaneous-7/README.md
index a08948eda5..266d79cdfa 100644
--- a/algorithms-modules/algorithms-miscellaneous-7/README.md
+++ b/algorithms-modules/algorithms-miscellaneous-7/README.md
@@ -10,8 +10,4 @@
 - [Check if Two Strings Are Rotations of Each Other](https://www.baeldung.com/java-string-check-strings-rotations)
 - [Find the Largest Prime Under the Given Number in Java](https://www.baeldung.com/java-largest-prime-lower-threshold)
 - [Count the Number of Unique Digits in an Integer using Java](https://www.baeldung.com/java-int-count-unique-digits)
-- [Generate Juggler Sequence in Java](https://www.baeldung.com/java-generate-juggler-sequence)
-- [Finding the Parent of a Node in a Binary Search Tree with Java](https://www.baeldung.com/java-find-parent-node-binary-search-tree)
-- [Check if a Number Is a Happy Number in Java](https://www.baeldung.com/java-happy-sad-number-test)
-- [Find the Largest Number Possible After Removing k Digits of a Number](https://www.baeldung.com/java-find-largest-number-remove-k-digits)
 - More articles: [[<-- prev]](/algorithms-miscellaneous-6)
diff --git a/algorithms-modules/algorithms-miscellaneous-7/src/test/java/com/baeldung/algorithms/connect4/README.md b/algorithms-modules/algorithms-miscellaneous-7/src/test/java/com/baeldung/algorithms/connect4/README.md
deleted file mode 100644
index 55bc2abec5..0000000000
--- a/algorithms-modules/algorithms-miscellaneous-7/src/test/java/com/baeldung/algorithms/connect4/README.md
+++ /dev/null
@@ -1,2 +0,0 @@
-## Relevant Articles
-- [Implement Connect 4 Game with Java](https://www.baeldung.com/java-connect-4-game)
diff --git a/algorithms-modules/algorithms-miscellaneous-8/README.md b/algorithms-modules/algorithms-miscellaneous-8/README.md
index e2c5047136..8bd185a7ba 100644
--- a/algorithms-modules/algorithms-miscellaneous-8/README.md
+++ b/algorithms-modules/algorithms-miscellaneous-8/README.md
@@ -1,3 +1,9 @@
 ### Relevant Articles: 
 - [Vigenère Cipher in Java](https://www.baeldung.com/java-vigenere-cipher)
 - [Merge Overlapping Intervals in a Java Collection](https://www.baeldung.com/java-collection-merge-overlapping-intervals)
+- [Generate Juggler Sequence in Java](https://www.baeldung.com/java-generate-juggler-sequence)
+- [Finding the Parent of a Node in a Binary Search Tree with Java](https://www.baeldung.com/java-find-parent-node-binary-search-tree)
+- [Check if a Number Is a Happy Number in Java](https://www.baeldung.com/java-happy-sad-number-test)
+- [Find the Largest Number Possible After Removing k Digits of a Number](https://www.baeldung.com/java-find-largest-number-remove-k-digits)
+- [Implement Connect 4 Game with Java](https://www.baeldung.com/java-connect-4-game)
+- More articles: [[<-- prev]](/algorithms-miscellaneous-7)
\ No newline at end of file
diff --git a/algorithms-modules/algorithms-miscellaneous-7/src/main/java/com/baeldung/algorithms/largestNumberRemovingK/LargestNumberRemoveKDigits.java b/algorithms-modules/algorithms-miscellaneous-8/src/main/java/com/baeldung/algorithms/largestNumberRemovingK/LargestNumberRemoveKDigits.java
similarity index 98%
rename from algorithms-modules/algorithms-miscellaneous-7/src/main/java/com/baeldung/algorithms/largestNumberRemovingK/LargestNumberRemoveKDigits.java
rename to algorithms-modules/algorithms-miscellaneous-8/src/main/java/com/baeldung/algorithms/largestNumberRemovingK/LargestNumberRemoveKDigits.java
index 79086fc61f..51e8350afc 100644
--- a/algorithms-modules/algorithms-miscellaneous-7/src/main/java/com/baeldung/algorithms/largestNumberRemovingK/LargestNumberRemoveKDigits.java
+++ b/algorithms-modules/algorithms-miscellaneous-8/src/main/java/com/baeldung/algorithms/largestNumberRemovingK/LargestNumberRemoveKDigits.java
@@ -1,6 +1,6 @@
 package com.baeldung.algorithms.largestNumberRemovingK;
 
-import java.util.*;
+import java.util.Stack;
 
 public class LargestNumberRemoveKDigits {
     public static int findLargestNumberUsingArithmetic(int num, int k) {
diff --git a/algorithms-modules/algorithms-miscellaneous-7/src/main/java/com/baeldung/algorithms/parentnodebinarytree/ParentKeeperTreeNode.java b/algorithms-modules/algorithms-miscellaneous-8/src/main/java/com/baeldung/algorithms/parentnodebinarytree/ParentKeeperTreeNode.java
similarity index 100%
rename from algorithms-modules/algorithms-miscellaneous-7/src/main/java/com/baeldung/algorithms/parentnodebinarytree/ParentKeeperTreeNode.java
rename to algorithms-modules/algorithms-miscellaneous-8/src/main/java/com/baeldung/algorithms/parentnodebinarytree/ParentKeeperTreeNode.java
diff --git a/algorithms-modules/algorithms-miscellaneous-7/src/main/java/com/baeldung/algorithms/parentnodebinarytree/TreeNode.java b/algorithms-modules/algorithms-miscellaneous-8/src/main/java/com/baeldung/algorithms/parentnodebinarytree/TreeNode.java
similarity index 100%
rename from algorithms-modules/algorithms-miscellaneous-7/src/main/java/com/baeldung/algorithms/parentnodebinarytree/TreeNode.java
rename to algorithms-modules/algorithms-miscellaneous-8/src/main/java/com/baeldung/algorithms/parentnodebinarytree/TreeNode.java
diff --git a/algorithms-modules/algorithms-miscellaneous-7/src/test/java/com/baeldung/algorithms/connect4/GameBoard.java b/algorithms-modules/algorithms-miscellaneous-8/src/test/java/com/baeldung/algorithms/connect4/GameBoard.java
similarity index 100%
rename from algorithms-modules/algorithms-miscellaneous-7/src/test/java/com/baeldung/algorithms/connect4/GameBoard.java
rename to algorithms-modules/algorithms-miscellaneous-8/src/test/java/com/baeldung/algorithms/connect4/GameBoard.java
diff --git a/algorithms-modules/algorithms-miscellaneous-7/src/test/java/com/baeldung/algorithms/connect4/GameUnitTest.java b/algorithms-modules/algorithms-miscellaneous-8/src/test/java/com/baeldung/algorithms/connect4/GameUnitTest.java
similarity index 100%
rename from algorithms-modules/algorithms-miscellaneous-7/src/test/java/com/baeldung/algorithms/connect4/GameUnitTest.java
rename to algorithms-modules/algorithms-miscellaneous-8/src/test/java/com/baeldung/algorithms/connect4/GameUnitTest.java
diff --git a/algorithms-modules/algorithms-miscellaneous-7/src/test/java/com/baeldung/algorithms/connect4/Piece.java b/algorithms-modules/algorithms-miscellaneous-8/src/test/java/com/baeldung/algorithms/connect4/Piece.java
similarity index 100%
rename from algorithms-modules/algorithms-miscellaneous-7/src/test/java/com/baeldung/algorithms/connect4/Piece.java
rename to algorithms-modules/algorithms-miscellaneous-8/src/test/java/com/baeldung/algorithms/connect4/Piece.java
diff --git a/algorithms-modules/algorithms-miscellaneous-7/src/test/java/com/baeldung/algorithms/happynumber/HappyNumberUnitTest.java b/algorithms-modules/algorithms-miscellaneous-8/src/test/java/com/baeldung/algorithms/happynumber/HappyNumberUnitTest.java
similarity index 100%
rename from algorithms-modules/algorithms-miscellaneous-7/src/test/java/com/baeldung/algorithms/happynumber/HappyNumberUnitTest.java
rename to algorithms-modules/algorithms-miscellaneous-8/src/test/java/com/baeldung/algorithms/happynumber/HappyNumberUnitTest.java
diff --git a/algorithms-modules/algorithms-miscellaneous-7/src/test/java/com/baeldung/algorithms/jugglersequence/JugglerSequenceUnitTest.java b/algorithms-modules/algorithms-miscellaneous-8/src/test/java/com/baeldung/algorithms/jugglersequence/JugglerSequenceUnitTest.java
similarity index 100%
rename from algorithms-modules/algorithms-miscellaneous-7/src/test/java/com/baeldung/algorithms/jugglersequence/JugglerSequenceUnitTest.java
rename to algorithms-modules/algorithms-miscellaneous-8/src/test/java/com/baeldung/algorithms/jugglersequence/JugglerSequenceUnitTest.java
diff --git a/algorithms-modules/algorithms-miscellaneous-7/src/test/java/com/baeldung/algorithms/largestNumberRemovingK/LargestNumberRemoveKDigitsUnitTest.java b/algorithms-modules/algorithms-miscellaneous-8/src/test/java/com/baeldung/algorithms/largestNumberRemovingK/LargestNumberRemoveKDigitsUnitTest.java
similarity index 100%
rename from algorithms-modules/algorithms-miscellaneous-7/src/test/java/com/baeldung/algorithms/largestNumberRemovingK/LargestNumberRemoveKDigitsUnitTest.java
rename to algorithms-modules/algorithms-miscellaneous-8/src/test/java/com/baeldung/algorithms/largestNumberRemovingK/LargestNumberRemoveKDigitsUnitTest.java
diff --git a/algorithms-modules/algorithms-miscellaneous-7/src/test/java/com/baeldung/algorithms/parentnodebinarytree/BinaryTreeParentNodeFinderUnitTest.java b/algorithms-modules/algorithms-miscellaneous-8/src/test/java/com/baeldung/algorithms/parentnodebinarytree/BinaryTreeParentNodeFinderUnitTest.java
similarity index 94%
rename from algorithms-modules/algorithms-miscellaneous-7/src/test/java/com/baeldung/algorithms/parentnodebinarytree/BinaryTreeParentNodeFinderUnitTest.java
rename to algorithms-modules/algorithms-miscellaneous-8/src/test/java/com/baeldung/algorithms/parentnodebinarytree/BinaryTreeParentNodeFinderUnitTest.java
index d3f0ec7997..ff31f99ed6 100644
--- a/algorithms-modules/algorithms-miscellaneous-7/src/test/java/com/baeldung/algorithms/parentnodebinarytree/BinaryTreeParentNodeFinderUnitTest.java
+++ b/algorithms-modules/algorithms-miscellaneous-8/src/test/java/com/baeldung/algorithms/parentnodebinarytree/BinaryTreeParentNodeFinderUnitTest.java
@@ -5,7 +5,9 @@ import org.junit.jupiter.api.Test;
 
 import java.util.NoSuchElementException;
 
-import static org.junit.jupiter.api.Assertions.*;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertThrows;
+import static org.junit.jupiter.api.Assertions.assertNull;
 
 class BinaryTreeParentNodeFinderUnitTest {