Generics, C# - rextester

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//Title of this code
//Rextester.Program.Main is the entry point for your code. Don't change it.

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text.RegularExpressions;

namespace Rextester
{
    public class Program
    {
        public class EntityNotFoundException<T> : Exception {}
        
        public class EntityStore<T>
        {
            public T GetEntity(int key) 
            {
                throw new EntityNotFoundException<T>();
            }
        }
        
        public class PlayerEntity {} //...
            
        public static void Main(string[] args)
        {
            EntityStore<PlayerEntity> entityStore = new EntityStore<PlayerEntity>();
            try
            {
                entityStore.GetEntity(6);
            }
            catch (EntityNotFoundException<PlayerEntity>)
            {
                Console.WriteLine("Player not found.");   
            }
            catch (Exception)
            {
                Console.WriteLine("Unexpected error.");   
            }     
            
        }
    }
}

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Compilation time: 0.14 sec, absolute running time: 0.11 sec, cpu time: 0.09 sec, average memory usage: 16 Mb, average nr of threads: 4