Итоговая лабораторная работа 3

HoistingCrane/HoistingCrane/CollectionGenericObjects/AbstractCompany.cs

@@ -1,5 +1,4 @@
 using HoistingCrane.Drawning;
-using System;
 namespace HoistingCrane.CollectionGenericObjects
 {
     public abstract class AbstractCompany
@@ -42,13 +41,13 @@ namespace HoistingCrane.CollectionGenericObjects
             arr.SetMaxCount = GetMaxCount;
         }
 
-        public static bool operator +(AbstractCompany company, DrawningTrackedVehicle car)
+        public static int operator +(AbstractCompany company, DrawningTrackedVehicle car)
         {
-            return company.arr?.Insert(car) ?? false;
+            return company.arr?.Insert(car) ?? 0;
         }
-        public static bool operator -(AbstractCompany company, int position)
+        public static DrawningTrackedVehicle operator -(AbstractCompany company, int position)
         {
-            return company.arr?.Remove(position) ?? false;
+            return company.arr?.Remove(position);
         }
 
         public DrawningTrackedVehicle? GetRandomObject()

HoistingCrane/HoistingCrane/CollectionGenericObjects/Garage.cs

@@ -1,7 +1,4 @@
 using HoistingCrane.Drawning;
-using System;
-using System.Collections.Specialized;
-
 namespace HoistingCrane.CollectionGenericObjects
 {
     public class Garage : AbstractCompany

HoistingCrane/HoistingCrane/CollectionGenericObjects/ICollectionGenericObjects.cs

@@ -1,5 +1,4 @@
-using System;
+namespace HoistingCrane.CollectionGenericObjects
-namespace HoistingCrane.CollectionGenericObjects
 {
     public interface ICollectionGenericObjects<T>
         where T: class
@@ -17,7 +16,7 @@ namespace HoistingCrane.CollectionGenericObjects
         /// </summary>
         /// <param name="obj"></param>
         /// <returns></returns>
-        bool Insert(T obj);
+        int Insert(T obj);
         /// <summary>
         /// Добавление элемента в коллекцию на определенную позицию
         /// </summary>
@@ -30,7 +29,7 @@ namespace HoistingCrane.CollectionGenericObjects
         /// </summary>
         /// <param name="position"></param>
         /// <returns></returns>
-        bool Remove(int position);
+        T? Remove(int position);
         T? Get(int position);
     }
 }

HoistingCrane/HoistingCrane/CollectionGenericObjects/MassivGenericObjects.cs

@@ -1,5 +1,4 @@
-using System;
+namespace HoistingCrane.CollectionGenericObjects
-namespace HoistingCrane.CollectionGenericObjects
 {
     public class MassivGenericObjects<T> : ICollectionGenericObjects<T> where T : class
     {
@@ -31,16 +30,16 @@ namespace HoistingCrane.CollectionGenericObjects
             return null;  
         }
 
-        public bool Insert(T obj)
+        public int Insert(T obj)
         {
             for(int i = 0; i < Count; i++)
             {
                 if (arr[i] == null) { 
-                    arr[i] = obj;
+                    Insert(obj,i);
-                    return true;
+                    return 1;
                 }
             }
-            return false;
+            return 0;
         }
 
         public bool Insert(T obj, int position)
@@ -81,14 +80,15 @@ namespace HoistingCrane.CollectionGenericObjects
             return false;
         }
 
-        public bool Remove(int position)
+        public T? Remove(int position)
         {
-            if(position < 0 || position >= arr.Length || arr[position] == null)
+            if(position >= 0 && position < Count)
             {
-                return false;
+                arr[position] = null;
+                return arr[position];
             }
-            arr[position] = null;
+            return arr[position];
-            return true;
         }
+
     }
 }

HoistingCrane/HoistingCrane/FormCarCollection.cs

@@ -1,15 +1,5 @@
 using HoistingCrane.CollectionGenericObjects;
 using HoistingCrane.Drawning;
-using System;
-using System.Collections.Generic;
-using System.ComponentModel;
-using System.Data;
-using System.Drawing;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
-using System.Windows.Forms;
-
 namespace HoistingCrane
 {
     public partial class FormCarCollection : Form
@@ -49,7 +39,7 @@ namespace HoistingCrane
                 default:
                     return;
             }
-            if (_company + drawning)
+            if ((_company + drawning) == 1)
             {
                 MessageBox.Show("Объект добавлен");
                 pictureBox.Image = _company.Show();
@@ -91,7 +81,7 @@ namespace HoistingCrane
                 return;
             }
             int pos = Convert.ToInt32(maskedTextBox.Text);
-            if (_company - pos)
+            if ((_company - pos) == null)
             {
                 MessageBox.Show("Объект удален!");
                 pictureBox.Image = _company.Show();