Osteoporosis Risk Calculator

I am building a calculator a bit more complicated BMI and received the message errror "Expected class, delegate, enum, interface or struct"

is the code I wrote

(
double height = Convert.ToDouble (TextBox1.Text);

double weight = Convert.ToDouble (TextBox2.Text);

double BMI = weight / (height * height);
if (BMI> = 27.5)
(
MessageBox.Show ("Warning, you have a high risk of heart disease and diabetes");
)
else
(If (BMI> = 23 & & <BMI = 27.4)
(
MessageBox.Show ("You have a moderate risk of heart disease and diabetes");
)
else
(If (BMI> = 18.5 & & <BMI = 22.9)
(
MessageBox.Show ("Congratulations, you're on the range in good health");
)
else
MessageBox.Show ("You risk deficiency diseases and osteoporosis");
)
)
)

Hello -

You write in Visual C + +, right?

Well, the code seems correct, but where did you "write" what is it? I suppose you've written for the "code" of your form, but you miss namespace header that defines this code as a reference to your form. It should look like this:

WHATEVER namespace (

double height = Convert.ToDouble (TextBox1.Text ...
double weight = Convert.ToDouble (TextBox2.Text ...

double BMI = weight / (height * height);
if (BMI> = 27.5)
(
MessageBox.Show ("Warning, you have a high risk of heart disease and diabetes");
)
else
(If (BMI> = 23 & & <BMI = 27.4)
(
MessageBox.Show ("You have a moderate risk of heart disease and diabetes");
)
else
(If (BMI> = 18.5 & & <BMI = 22.9)
(
MessageBox.Show ("Congratulatio ... you are on the range in good health");
)
else
MessageBox.Show ("You risk deficiency diseases and osteoporosis");
)
)
)

I hope that helps?

Fly