Why can I pass 1 as a short, but not the int variable i?

Question

Why does the first and second Write work but not the last? Is there a way I can allow all 3 of them and detect if it was 1, (int)1 or i passed in? And really why is one allo

Answer 1

Because there will not be any implicit conversion between Nonliteral type to larger sized short.

Implicit conversion is only possible for constant-expression.

public static void Write(short v) { }

Where as you are passing integer value as an argument to short

int i=1;
Write(i);  //Which is Nonliteral here