Addressed comments by alxkm

Author: mjk22071998

src/main/java/com/thealgorithms/datastructures/lists/SortedLinkedList.java

@@ -1,17 +1,15 @@
 package com.thealgorithms.datastructures.lists;
 
 import java.util.ArrayList;
+import java.util.List;
 
 /**
  * A SortedLinkedList is a data structure that maintains a sorted list of elements.
  * Elements are ordered based on their natural ordering or by a Comparator provided at the time of creation.
  * This implementation uses a singly linked list to store the elements.
  * Further details can be found on this link
  * https://runestone.academy/ns/books/published/cppds/LinearLinked/ImplementinganOrderedList.html
- * @author Muhammad Junaid Khalid
- * @param int the type of elements in this list
  */
-
 public class SortedLinkedList {
     private Node head;
     private Node tail;
@@ -111,31 +109,14 @@ public boolean search(int value) {
     public boolean isEmpty() {
         return head == null;
     }
-
-    /**
-     * Returns the minimum value in the sorted linked list.
-     * @return the minimum value
-     */
-    public int minValue() {
-        return this.head.value;
-    }
-
-    /**
-     * Returns the maximum value in the sorted linked list.
-     * @return the maximum value
-     */
-    public int maxValue() {
-        return this.tail.value;
-    }
-
     /**
      * Returns a string representation of the sorted linked list.
      * @return a string representation of the sorted linked list
      */
     @Override
     public String toString() {
         if (this.head != null) {
-            ArrayList<String> elements = new ArrayList<>();
+            List<String> elements = new ArrayList<>();
             Node temp = this.head;
             while (temp != null) {
                 elements.add(String.valueOf(temp.value));
@@ -147,8 +128,8 @@ public String toString() {
         }
     }
 
-    public class Node {
-        public int value;
+    public final class Node {
+        public final int value;
         public Node next;
 
         public Node() {

src/test/java/com/thealgorithms/datastructures/lists/SortedLinkedListTest.java

@@ -37,25 +37,6 @@ public void testSearch() {
         assertTrue(list.search(5));
         assertFalse(list.search(10));
     }
-
-    @Test
-    public void testMinValue() {
-        SortedLinkedList list = new SortedLinkedList();
-        list.insert(5);
-        list.insert(3);
-        list.insert(7);
-        assertEquals(3, list.minValue());
-    }
-
-    @Test
-    public void testMaxValue() {
-        SortedLinkedList list = new SortedLinkedList();
-        list.insert(5);
-        list.insert(3);
-        list.insert(7);
-        assertEquals(7, list.maxValue());
-    }
-
     @Test
     public void testEmptyList() {
         SortedLinkedList list = new SortedLinkedList();