Assignment 5 (Error Handling in Car Accident scenario)

CarAccidentErrorHandling/CarAccidentErrorHandling/Car.cs

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+namespace CarAccidentErrorHandling
+{
+    public class Car
+    {
+        public void Start()
+        {
+            Console.WriteLine("Car started.");
+        }
+
+        public void Run()
+        {
+            Console.WriteLine("Car is running.");            
+            DrivingScenario scenario = (DrivingScenario)new Random().Next(1, 6); // Simulate random car failure/accident scenarios
+            switch (scenario)
+            {
+                case DrivingScenario.Collision:
+                    throw new CollisionException("Car collided with another vehicle!");
+                case DrivingScenario.RoadObstacle:
+                    throw new RoadObstacleException("Car encountered a road obstacle!");
+                case DrivingScenario.PedestrianCollision:
+                    throw new PedestrianCollisionException("Car hit a pedestrian!");
+                case DrivingScenario.MechanicalFailure:
+                    throw new MechanicalFailureException("Car experienced a mechanical failure!");
+                case DrivingScenario.Safe:
+                    Console.WriteLine("Car reached its destination safely.");
+                    break;
+            }
+        }
+
+        public void Stop()
+        {
+            Console.WriteLine("Car stopped.");
+        }
+
+        public void Brake()
+        {
+            Console.WriteLine("Braking to avoid accident.");
+        }
+
+        public void Swerve()
+        {
+            Console.WriteLine("Swerving to avoid obstacle.");
+        }
+
+        public void ResetCarState()
+        {
+            Console.WriteLine("Reseting car's state like turn off lights, any indicator or alarms, set gear to neutral, etc.")
+        }
+
+        public enum DrivingScenario
+        {
+            Collision = 1,
+            RoadObstacle = 2,
+            PedestrianCollision = 3,
+            MechanicalFailure = 4,
+            Safe = 5
+        }
+    }
+}

CarAccidentErrorHandling/CarAccidentErrorHandling/CarOperator.cs

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+namespace CarAccidentErrorHandling
+{
+    internal class CarOperator
+    {
+        static void Main(string[] args)
+        {
+            Car car = new Car();
+            try
+            {
+                car.Start();
+                car.Run();
+            }
+            catch (CollisionException collisionException)
+            {
+                Console.WriteLine("Car Accident: " + collisionException.Message);
+                car.Brake();
+            }
+            catch (RoadObstacleException roadObstaclException)
+            {
+                Console.WriteLine("Road Obstacle: " + roadObstaclException.Message);
+                car.Swerve();
+                car.Brake();
+            }
+            catch (PedestrianCollisionException pedestrianException)
+            {
+                Console.WriteLine("Pedestrian Accident: " + pedestrianException.Message);
+                car.Brake();
+            }
+            catch (MechanicalFailureException mechanicalFailureException)
+            {
+                Console.WriteLine("Mechanical Failure: " + mechanicalFailureException.Message);
+            }
+            catch (Exception exception)
+            {
+                Console.WriteLine("An unexpected error occurred: " + exception.Message);
+            }
+            finally
+            {
+                Console.WriteLine("Attempting to bring the car back to a normal state");
+                car.Stop();
+                car.ResetCarState();
+            }
+        }
+    }
+}

CarAccidentErrorHandling/CarAccidentErrorHandling/Exceptions.cs

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+namespace CarAccidentErrorHandling
+{
+    public class CollisionException : Exception
+    {
+        public CollisionException(string message) : base(message) { }
+    }
+
+    public class RoadObstacleException : Exception
+    {
+        public RoadObstacleException(string message) : base(message) { }
+    }
+
+    public class PedestrianCollisionException : Exception
+    {
+        public PedestrianCollisionException(string message) : base(message) { }
+    }
+
+    public class MechanicalFailureException : Exception
+    {
+        public MechanicalFailureException(string message) : base(message) { }
+    }
+}

CarAccidentErrorHandling/README.md

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+# Assignment - Error Handling in Car Accident Scenario
+
+![Car accident image on basis of which we have to think of try-catch scenarios.](https://www.oreilly.com/api/v2/epubs/9780136083238/files/images/103fig01.jpg)
+
+- You have to think about given image and come with scenarios.
+- What are the try and catches are occurring into that image. You have to find different kind of exceptions. You have to write them in code with proper sequence.