diff --git a/laba 0/laba 0/CollectionGenericObjects/ICollectionGenericObjects.cs b/laba 0/laba 0/CollectionGenericObjects/ICollectionGenericObjects.cs
index 643de81..df715aa 100644
--- a/laba 0/laba 0/CollectionGenericObjects/ICollectionGenericObjects.cs	
+++ b/laba 0/laba 0/CollectionGenericObjects/ICollectionGenericObjects.cs	
@@ -35,7 +35,7 @@ public interface ICollectionGenericObjects<T>
     /// </summary>
     /// <param name="obj">Добавляемый объект</param>
     /// <param name="position">Позиция</param>
-    /// <returns>true - вставка прошла удачно, false - вставка неудалась</returns>
+    /// <returns>true - вставка прошла удачно, false - вставка не удалась</returns>
     int Insert(T obj, int position);
 
     /// <summary>
diff --git a/laba 0/laba 0/CollectionGenericObjects/MassiveGenericObjects.cs b/laba 0/laba 0/CollectionGenericObjects/MassiveGenericObjects.cs
index 0f9e3ee..5e8dc5b 100644
--- a/laba 0/laba 0/CollectionGenericObjects/MassiveGenericObjects.cs	
+++ b/laba 0/laba 0/CollectionGenericObjects/MassiveGenericObjects.cs	
@@ -28,61 +28,66 @@ public class MassiveGenericObjects<T> : ICollectionGenericObjects<T>
 
     public T? Get(int position)
     {
-        if (position < 0 || position >= _collection.Length) return null;
+        // TODO проверка позиции
+        if (position >= _collection.Length || position < 0)
+        { return null; }
         return _collection[position];
     }
 
     public int Insert(T obj)
-    {
-        for (int i = 0; i < Count; i++)
+    {// TODO вставка в свободное место набора
+        int index = 0;
+        while (index < _collection.Length)
         {
-            if (_collection[i] == null)
+            if (_collection[index] == null)
             {
-                _collection[i] = obj;
-                return i;
+                _collection[index] = obj;
+                return index;
             }
+
+            index++;
         }
         return -1;
     }
 
     public int Insert(T obj, int position)
     {
-        if (position < 0 || position >= Count)
-        {
-            return -1;
-        }
+        if (position >= _collection.Length || position < 0)
+        { return -1; }
+
         if (_collection[position] == null)
         {
             _collection[position] = obj;
             return position;
         }
+        int index;
 
-        for (int i = position + 1; i < Count; i++)
+        for (index = position + 1; index < _collection.Length; ++index)
         {
-            if (_collection[i] == null)
+            if (_collection[index] == null)
             {
-                _collection[i] = obj;
-                return i;
-            }
-        }
-        for (int i = position - 1; i >= 0; i--)
-        {
-            if (_collection[i] == null)
-            {
-                _collection[i] = obj;
-                return i;
+                _collection[position] = obj;
+                return position;
             }
         }
 
+        for (index = position - 1; index >= 0; --index)
+        {
+            if (_collection[index] == null)
+            {
+                _collection[position] = obj;
+                return position;
+            }
+        }
         return -1;
     }
 
     public T? Remove(int position)
     {
-        if (position < 0 || position >= Count)
-        {
-            return null;
-        }
+        // TODO проверка позиции
+        // TODO удаление объекта из массива, присвоив элементу массива значение null
+        if (position >= _collection.Length || position < 0)
+        { return null; }
         T? obj = _collection[position];
         _collection[position] = null;
         return obj;
diff --git a/laba 0/laba 0/FormBoatCollection.cs b/laba 0/laba 0/FormBoatCollection.cs
index a19bb24..2320d17 100644
--- a/laba 0/laba 0/FormBoatCollection.cs	
+++ b/laba 0/laba 0/FormBoatCollection.cs	
@@ -210,7 +210,7 @@ public partial class FormBoatCollection : Form
     /// <param name="e"></param>
     private void buttonCollectionDel_Click(object sender, EventArgs e)
     {
-        if (listBoxCollection.SelectedIndex < 0 || listBoxCollection.SelectedItems == null)
+        if (listBoxCollection.SelectedIndex < 0 || listBoxCollection.SelectedItem == null)
         {
             MessageBox.Show("Коллекция не выбрана");
             return;