Given the declarations
  double alpha = 4.0, beta = 6.0;
  int x = 5, y = 10;


What would happen in the following expressions?
alpha/y
x/beta
x/y
static_cast<double>(x)/y
x/double(y)
double(x/y)


여기서 double(x/y) 값은 머냐?? 0.5 , 0.5 , 0 맞냐 밑에 static_cast 밑으로 값들