docs: improve iterator

iterator/src/main/java/com/iluwatar/iterator/bst/TreeNode.java

@@ -24,6 +24,9 @@
  */
 package com.iluwatar.iterator.bst;
 
+import lombok.Getter;
+import lombok.Setter;
+
 /**
  * TreeNode Class, representing one node in a Binary Search Tree. Allows for a generically typed
  * value.
@@ -33,7 +36,13 @@ package com.iluwatar.iterator.bst;
 public class TreeNode<T extends Comparable<T>> {
 
   private final T val;
+
+  @Getter
+  @Setter
   private TreeNode<T> left;
+
+  @Getter
+  @Setter
   private TreeNode<T> right;
 
   /**
@@ -51,22 +60,6 @@ public class TreeNode<T extends Comparable<T>> {
     return val;
   }
 
-  public TreeNode<T> getLeft() {
-    return left;
-  }
-
-  private void setLeft(TreeNode<T> left) {
-    this.left = left;
-  }
-
-  public TreeNode<T> getRight() {
-    return right;
-  }
-
-  private void setRight(TreeNode<T> right) {
-    this.right = right;
-  }
-
   /**
    * Inserts new TreeNode based on a given value into the subtree represented by self.
    *

iterator/src/main/java/com/iluwatar/iterator/list/Item.java

@@ -24,29 +24,23 @@
  */
 package com.iluwatar.iterator.list;
 
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+import lombok.Setter;
+
 /**
  * Item.
  */
+@AllArgsConstructor
 public class Item {
 
+  @Getter
+  @Setter
   private ItemType type;
   private final String name;
 
-  public Item(ItemType type, String name) {
-    this.setType(type);
-    this.name = name;
-  }
-
   @Override
   public String toString() {
     return name;
   }
-
-  public ItemType getType() {
-    return type;
-  }
-
-  public final void setType(ItemType type) {
-    this.type = type;
-  }
 }

iterator/src/test/java/com/iluwatar/iterator/list/TreasureChestTest.java

@@ -92,7 +92,7 @@ class TreasureChestTest {
    */
   @ParameterizedTest
   @MethodSource("dataProvider")
-  void testGetItems(Item expectedItem) throws Exception {
+  void testGetItems(Item expectedItem) {
     final var chest = new TreasureChest();
     final var items = chest.getItems();
     assertNotNull(items);