static void Main(string[] args)
{
testArrayLength();
testLink();
Cls c = new Cls();
testCls(c);
}
static void testCls(Cls c)
{
Cls f = new Cls(1, 0);
try
{
int res = f.division();
}
catch (DivideByZeroException e)
{
Console.WriteLine(e.Message);
}
}