how can trust

Yes Normal class can have static constructor but only one. it automatically called only once when any of class member is first time called or access.. even at instance creation. And important thing is static constructor should be parameterless...

yes we can have static constructor inside a non-static class.

Yes, it can.But user will not have any control on its invoke.

Yes, we can have static constructor . But user have no control over evoking it.

Yes, It can have.. http://msdn.microsoft.com/en-us/library/ms173116%28v=vs.80%29.aspx

yes it is possible, Refer this link http://sandeepmhatre.blogspot.com/2013/03/constructors.html

but we can not use this value every time variable is 0

yes we can create the static constructor in non static class... it is parameter less and how static constructor called only once when how many number of objects created to the that class static fields only one reference

Yes, it is possible.
But we have to create an object of the class inside the static constructor and then initialize the non static member through the objectreference.

And to initialize static member of the class too.


class Class2
{
int a;
static Class2()
{
Class2 p = new Class2();
p.a = 45;
System.Console.WriteLine(p.a);
}
static void Main()
{

}
}