Готовая лабораторная работа 3

HoistingCrane/HoistingCrane/CollectionGenericObjects/MassivGenericObjects.cs

@@ -1,4 +1,5 @@
-namespace HoistingCrane.CollectionGenericObjects
+using System;
+namespace HoistingCrane.CollectionGenericObjects
 {
     public class MassivGenericObjects<T> : ICollectionGenericObjects<T> where T : class
     {
@@ -7,74 +8,77 @@
         {
             arr = Array.Empty<T?>();
         }
-        public int Count 
+        public int Count
         {
-            get { return arr.Length; } 
+            get { return arr.Length; }
-        } 
+        }
         public int SetMaxCount
         {
             set
             {
                 if (value > 0)
                 {
-                    arr = new T?[value];   
+                    if (arr.Length > 0)
+                    {
+                        Array.Resize(ref arr, value);
+                    }
+                    else
+                    {
+                        arr = new T?[value];
+                    }
                 }
             }
         }
         public T? Get(int position)
         {
-            if(position >= 0 && position < arr.Length)
+            if (position >= 0 && position < arr.Length)
             {
                 return arr[position];
             }
-            return null;  
+            return null;
         }
+
         public int Insert(T obj)
         {
             return Insert(obj, 0);
         }
+
         public int Insert(T obj, int position)
         {
-
+            //todo Проверка позиции
             if (position < 0 || position > Count)
             {
                 return -1;
             }
 
-            int pos = position - 1;
+            if (arr[position] == null)
-
-            while (position < Count)
             {
-                if (arr[position] == null)
+                arr[position] = obj;
+                return position;
+            }
+            else
+            {
+                if (Insert(obj, position + 1) != -1)
                 {
-                    arr[position] = obj;
                     return position;
                 }
-                position++;
+                if (Insert(obj, position - 1) != -1)
-            }
-            while (pos > 0)
-            {
-                if (arr[position] == null)
                 {
-                    arr[position] = obj;
                     return position;
                 }
-                position--;
             }
-
             return -1;
-
         }
+
         public T? Remove(int position)
         {
-            if (position < 0 || position > Count)
+            if (position >= 0 && position < Count)
             {
-                return null;
+                T? temp = arr[position];
+                arr[position] = null;
+                return temp;
             }
-
+            return null;
-            T? removed_object = arr[position];
-            arr[position] = null;
-            return removed_object;
         }
     }
 }