Thread: Java Static Method

Could someone give me a hints on how I can return the answer to "surfaceGravi" I get incompatibles type when I try to return it to surfaceGravi. Thanks

public class GravityV1
{
    // Calculate surface gravity
    public static double surfaceGrav( double []massKilo, double[] diameter)
    {   double gravConstant = 6.67E-11;
        double []surfaceGravi= new double[9];
        for(int count = 0; count < surfaceGravi.length;count++)
        {
        surfaceGravi[count] = ((gravConstant * massKilo[count]) / (Math.pow(diameter[count]/2,2)));
        }
        return surfaceGravi;
    }
 
    public static void main(String[]args)
    {
        String [] planetName = {"Mercury","Venus","Earth","Mars","Jupiter","Saturn","Uranus","Neptune","Pluto"};
        double [] massKilo = {3.30E23,4.869E24,5.972E24,6.4219E23,1.900E27,5.68E26,8.683E25,1.0247E26,1.27E22};
        double [] diameter = {4880,12103.6,12756.3,6794,142984,120536,51118,49532,2274};
 
    }
}

I fixed it on the post, thanks. ~Incompatibles type at return surfaceGravi;

Oh, I didn't realize one is double and the other one is double array. Thanks you so much!