idisposable

202409/ConsoleApp1/Animals/Animal.cs

@@ -1,5 +1,69 @@
 namespace ConsoleApp1.Animals
 {
+
+    internal class MealReceiverAdapter : IMealReceiver
+    {
+        public IMealContainer MealContainer { get; }
+
+        public MealReceiverAdapter(IMealContainer mealContainer)
+        {
+            MealContainer = mealContainer;
+        }
+
+
+        public int PutAMeal(int iCount)
+        {
+            if (iCount == 0) return 0;
+            for(int i = 0; i < iCount; i++)
+            {
+                MealContainer.ReturnAMeal();
+            }
+            return 1;
+        }
+    }
+
+    internal class MealContainer : IMealContainer
+    {
+        private int MealCount = 10;
+        public int GetAMeal()
+        {
+            if (MealCount == 0) return 0;
+            MealCount--;
+            return 1;
+        }
+
+        public void ReturnAMeal()
+        {
+            MealCount++;
+        }
+    }
+
+    internal class MealConsumer : IDisposable
+    {
+        public IMealContainer Container { get; }
+        public int MealCount { get; private set; } = 0;
+
+        public MealConsumer(IMealContainer container)
+        {
+            Container = container;
+        }
+
+        public void ThreeHoursLater()
+        {
+            MealCount += Container.GetAMeal();
+        } 
+
+
+        public void Dispose()
+        {
+            for(int ii =0; ii < MealCount; ii++)
+            {
+                Container.ReturnAMeal();
+            }
+        }
+    }
+
+
     internal class Animal
     {
         #region internal classes

202409/ConsoleApp1/Animals/IMealContainer.cs

@@ -0,0 +1,14 @@
+namespace ConsoleApp1.Animals
+{
+    internal interface IMealContainer
+    {
+        int GetAMeal();
+        void ReturnAMeal();
+    }
+
+    internal interface IMealReceiver
+    {
+        int PutAMeal(int iCount);
+    }
+
+}

202409/ConsoleApp1/Program.cs

@@ -9,6 +9,13 @@ namespace ConsoleApp1
     {
         static void Main(string[] args)
         {
+            h_DisposableDemo();
+            using (var object_ = h_DisposablelessDemo())
+            {
+                //...
+            }
+
+
                 // h_PlayCards();
                 //Animal animal = new Animal();
                 //Animal.MilkConsumerAreaInfo info = animal.GetAreaInfo();
@@ -25,6 +32,46 @@ namespace ConsoleApp1
             Console.ReadKey();
         }
 
+        private static void h_DisposableDemo()
+        {
+            using (MealConsumer human = new MealConsumer(GetMealContainer1()))
+            {
+                //try
+                //{
+                human.ThreeHoursLater();
+                Thread.Sleep(3 * 60 * 60 * 1000 / 400000);
+                human.ThreeHoursLater();
+                Thread.Sleep(3 * 60 * 60 * 1000 / 400000);
+                human.ThreeHoursLater();
+                Thread.Sleep(3 * 60 * 60 * 1000 / 400000);
+                Console.WriteLine();
+            }
+
+            //}
+            //finally
+            //{
+            //    human.Dispose();
+            //}
+        }
+
+        private static MealConsumer h_DisposablelessDemo()
+        {
+            MealConsumer human = new MealConsumer(GetMealContainer1());
+            human.ThreeHoursLater();
+            Thread.Sleep(3 * 60 * 60 * 1000 / 400000);
+            human.ThreeHoursLater();
+            Thread.Sleep(3 * 60 * 60 * 1000 / 400000);
+            human.ThreeHoursLater();
+            Thread.Sleep(3 * 60 * 60 * 1000 / 400000);
+            Console.WriteLine();
+            return human;
+        }
+
+        private static IMealContainer GetMealContainer1()
+        {
+            return new MealContainer();
+        }
+
         private static void h_WriteXml(string sXmlFn)
         {
             if (File.Exists(sXmlFn)) File.Delete(sXmlFn);