[jim01]

My book gives several examples of creating constructors and instantiating objects by calling the constructors. However, in all the examples, the values for the variables are put directly into the constructor. Here is one of the examples:

public CarpetCalculator(double amountNeeded, double price)
{
    noOfSqYards = amountNeeded;
    pricePerSqYard = price;
}

CarpetCalculator plush = new CarpetCalculator(37.90, 17.95);

Ok, that's fine, I understand that. However, what if the variables "amountNeeded" and "price" are derived from user inputs? Then how would you call the constructor?

I tried this but received an error message:

CarpetCalculator plush = new CarpetCalculator(amountNeeded, price); 

I have no idea what else to try.

[Sergio Tapia]

I'm fairly certain that you tried that without capturing user input into those variables, correct?

Try to set a value to those variables before you use them. Also, copy paste the error you got, we aren't wizards.

[jim01]

Thank you for the response but I figured it out.