C# Online Compiler | .NET Fiddle

using System;
					
public class Program
{
	public class Person
	{
		public string FirstName{ get; set; }
		public string LastName{ get; set; }
		
		public string FullName {
			get {
				return $"{FirstName} {LastName}";
			}
		}
	}
	
	
	public static void Main()
	{
		Person pObj = new Person(){ FirstName= "Amal", LastName = "Dev"};
		
		Console.WriteLine($"Full Name = {pObj.FullName}");
	}
}

 
using System;
                    
public class Program
{
    public class Person
    {
        public string FirstName{ get; set; }
        public string LastName{ get; set; }
        
        public string FullName {
            get {
                return $"{FirstName} {LastName}";
            }
        }
    }
    
    
    public static void Main()
    {
        Person pObj = new Person(){ FirstName= "Amal", LastName = "Dev"};
        
        Console.WriteLine($"Full Name = {pObj.FullName}");
    }
}

Cached Result

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