static void ParamSample()
{
Lesson11 lesson = new Lesson11();
lesson.UseParamas(10, 3, 24, 36, 45, 120);
lesson.UseParamas();
int[] intArray = { 2, 3, 4, 5, 6 };
lesson.UseParamas(intArray);
lesson.UseParamas2(1, "happy", false, 34.5F);
lesson.Optionalparam("Bella");
lesson.Optionalparam("Mark", 19);
}