Question

The array in the main method looks like this:

double[] x = { 11.11, 66.66, 88.88, 33.33, 55.55 };

And the code that’s giving me trouble is:

public static double computeAverage(double[] x){

        double xTotal = 0.0;

        for (int i = 0; i < x.length(); i++)
        {
            xTotal = xTotal + x[i]; 
        }
        double computeAverage = xTotal / x.length();
        return computeAverage;
}

About the only thing I know for sure is that I’m trying to get the length of the array x and it’s giving me an error because it’s a double and not an integer. Does the “double” has an equivalent to “length” I can try?

Answer 1

length() is not a method for any array class. Instead, you should get the length through the length field. Fields are accessed without parameters (i.e. without parenthesis).

for (int i = 0; i < x.length; i++)
{