C# Online Compiler | .NET Fiddle

using System;

var product = new Product("name");

var newProduct = new Product(){
	Name = "newName"
};
					
public class Product{
	public string Name {get;init;}
	
	public Product(){
	}
	
	public Product(string name){
		Name = name;
	}
}

Compilation error (line 11, col 4): The name 'Console' does not exist in the current context
Compilation error (line 12, col 23): The name 'Console' does not exist in the current context
Compilation error (line 16, col 4): The name 'Console' does not exist in the current context
Compilation error (line 17, col 4): The name 'Console' does not exist in the current context
Compilation error (line 18, col 4): The name 'Console' does not exist in the current context