Simple Constructor Implementation, C#

Language: Layout:

//Rextester.Program.Main is the entry point for your code. Don't change it.
//Compiler version 4.0.30319.17929 for Microsoft (R) .NET Framework 4.5

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

namespace Rextester
{
    public class Program
    {
        public static void Main(string[] args)
        {
            //Your code goes here
            Console.WriteLine("Hello, world!");
            //Test abc = new Test();
            Console.WriteLine("Hello, world!");
            Test abc1 = new TestChild();
            Console.WriteLine("Hello, world!");
            TestChild abc2 = new TestChild(10, "abc");
            //Console.WriteLine("Hello, world!");
            //Test abc = new Test();
        }
    }
    
    public class Test
    {
        static Test()
        {
            Console.WriteLine("In Static Test Class Constructor");
        }
        public Test()
        {
            Console.WriteLine("In normal Test Class Constructor");
        }
    }
    
    public class TestChild : Test
    {
        static TestChild()
        {
            Console.WriteLine("In Static TestChild Class Constructor");
        }
        public TestChild()
        {
            Console.WriteLine("In normal TestChild Class Constructor");
        }
        public TestChild(int a, string b)
        {
            Console.WriteLine("In Parameterized TestChild Class Constructor");
        }
    }
    
}

Show compiler warnings [ + ] Show input
Compilation time: 0,2 sec, absolute running time: 0,14 sec, cpu time: 0,16 sec, average memory usage: 16 Mb, average nr of threads: 3, absolute service time: 0,4 sec