private void button1_Click(object sender, EventArgs e)
{
MySecondClass msc = new MySecondClass();
// msc.ShowMessage("Message");
//MyThirdClass mtc = new MyThirdClass();
msc.MyVoid();
}
static void Main(string[] args)
{
MySecondClass mySecondClass = new MySecondClass();
mySecondClass.ValueAssignmentWithoutArguments();
Console.WriteLine($"Text line length: { mySecondClass.TextSize}");
int k = 3;
Console.WriteLine($"Text line element: {mySecondClass[k]}");
string name = "Olya";
mySecondClass.ValueAssignmentWithOneArgumen(name);
Console.WriteLine(mySecondClass.number);
Console.ReadKey();
}