C# Online Compiler | .NET Fiddle

using System;
					
public class Bird {

}

public class Program
{
	public static void Main()
	{
	    Bird test = new Bird("duck", "Patrick", "swimming", 12, true);

		if (test.getSpecies() == "duck" && 
		  test.getName() == "Patrick" && 
		  test.getHobby() == "swimming" && 
		  test.getAge() == 12 && 
		  test.getLoveMusic()) {
			Console.WriteLine("Congradulations! You correctly implemented the Bird Class :)");
		} else {
			Console.WriteLine("Something is still not quite right!");
		}
	}
}

 
using System;
                    
public class Bird {
​
}
​
public class Program
{
    public static void Main()
    {
        Bird test = new Bird("duck", "Patrick", "swimming", 12, true);
​
        if (test.getSpecies() == "duck" && 
          test.getName() == "Patrick" && 
          test.getHobby() == "swimming" && 
          test.getAge() == 12 && 
          test.getLoveMusic()) {
            Console.WriteLine("Congradulations! You correctly implemented the Bird Class :)");
        } else {
            Console.WriteLine("Something is still not quite right!");
        }
    }
}
​
​

Compilation error (line 11, col 22): 'Bird' does not contain a constructor that takes 5 arguments
Compilation error (line 13, col 12): 'Bird' does not contain a definition for 'getSpecies' and no accessible extension method 'getSpecies' accepting a first argument of type 'Bird' could be found (are you missing a using directive or an assembly reference?)
Compilation error (line 14, col 10): 'Bird' does not contain a definition for 'getName' and no accessible extension method 'getName' accepting a first argument of type 'Bird' could be found (are you missing a using directive or an assembly reference?)
Compilation error (line 15, col 10): 'Bird' does not contain a definition for 'getHobby' and no accessible extension method 'getHobby' accepting a first argument of type 'Bird' could be found (are you missing a using directive or an assembly reference?)
Compilation error (line 16, col 10): 'Bird' does not contain a definition for 'getAge' and no accessible extension method 'getAge' accepting a first argument of type 'Bird' could be found (are you missing a using directive or an assembly reference?)
Compilation error (line 17, col 10): 'Bird' does not contain a definition for 'getLoveMusic' and no accessible extension method 'getLoveMusic' accepting a first argument of type 'Bird' could be found (are you missing a using directive or an assembly reference?)