C# Online Compiler | .NET Fiddle

<no name> by Anonymous

using System;
					
public class Program
{
	public class Person
	{
		public string Name { get; set; }
		public string LastName { get; set; }

		public override string ToString()
		{
			return this.Name + " " + this.LastName;
		}
	}

	public static void Main()
	{
		Person p = new Person { Name = "John", LastName = "Smith" };

		Console.WriteLine(p);
		Console.WriteLine(Change(p));
		Console.WriteLine(p);
	}

	public static Person Change(Person person)
	{
		person.LastName = "Doe";

		person = new Person()
		{
			Name = "Alex",
			LastName = "Bolton"
		};

		return person;
	}
}

​x
 
using System;
                    
public class Program
{
    public class Person
    {
        public string Name { get; set; }
        public string LastName { get; set; }
​
        public override string ToString()
        {
            return this.Name + " " + this.LastName;
        }
    }
​
    public static void Main()
    {
        Person p = new Person { Name = "John", LastName = "Smith" };
​
        Console.WriteLine(p);
        Console.WriteLine(Change(p));
        Console.WriteLine(p);
    }
​
    public static Person Change(Person person)
    {
        person.LastName = "Doe";
​
        person = new Person()
        {
            Name = "Alex",
            LastName = "Bolton"
        };
​
        return person;
    }
}

Controller: Compilation error (line 7, col 38): The type or namespace name 'ApiController' could not be found (are you missing a using directive or an assembly reference?)
Controller: Compilation error (line 9, col 26): The type or namespace name 'CompanyRepository' could not be found (are you missing a using directive or an assembly reference?)
Controller: Compilation error (line 11, col 34): The type or namespace name 'CompanyRepository' could not be found (are you missing a using directive or an assembly reference?)
Controller: Compilation error (line 18, col 16): The type or namespace name 'IHttpActionResult' could not be found (are you missing a using directive or an assembly reference?)
Controller: Compilation error (line 16, col 10): The type or namespace name 'Route' could not be found (are you missing a using directive or an assembly reference?)
Controller: Compilation error (line 16, col 10): The type or namespace name 'RouteAttribute' could not be found (are you missing a using directive or an assembly reference?)
Controller: Compilation error (line 17, col 10): The type or namespace name 'HttpGet' could not be found (are you missing a using directive or an assembly reference?)
Controller: Compilation error (line 17, col 10): The type or namespace name 'HttpGetAttribute' could not be found (are you missing a using directive or an assembly reference?)
Controller: Compilation error (line 6, col 3): The type or namespace name 'RoutePrefix' could not be found (are you missing a using directive or an assembly reference?)
Controller: Compilation error (line 6, col 3): The type or namespace name 'RoutePrefixAttribute' could not be found (are you missing a using directive or an assembly reference?)

Last Run:	11:24:20 pm
Compile:	0s
Execute:	0.274s
Memory:	0b
CPU:	0s

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