Thread: Java static method writing to a file

Could someone lead me to the right direction of how I can write my result to a text file? I know how to write to a text file when they're all under one method but can't seem to figure out how when it static method. Thank you

import java.io.IOException;
import java.io.PrintWriter;
import java.io.File;
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;
    }
 
    //Print the results
    public static void printResults(String [] planetName, double [] diameterKm, double [] massKilo, double[]gravity)
    {   
        System.out.printf("%32s\n","Planetary Data");
        System.out.printf("%-12s %-17s %7s %11s\n","Planet","Diameter(Km)","Mass(Kg)","g(m/s^2)");
        System.out.println("--------------------------------------------------");        
        for(int counter = 0; counter < 9; counter++)
        {
            System.out.printf("%-14s %-14.0f %5.2e %11.2f\n",planetName[counter],diameterKm[counter],massKilo[counter],gravity[counter]);
        }
    }
 
    //Output the results
    public static  void outputData(double[] gravity)throws IOException
    {
       PrintWriter outFile = new PrintWriter(new File("surfaceGravity.txt"));
        double []outputGrav = gravity; 
        for(int index = 0; index < outputGrav.length;index++)
        {
            outFile.println(outputGrav[index]);
        }
    }
 
    public static void main(String[]args) throws IOException
    {
        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 = {4880000,12103600,12756300,6794000,142984000,120536000,51118000,49532000,2274000};
        double [] diameterKm = {4880,12103.6,12756.3,6794,142984,120536,51118,49532,2274 };
        double [] gravity = surfaceGrav(massKilo, diameter);
        printResults(planetName, diameterKm, massKilo, gravity);
        outputData(gravity);
 
 
    }
}
 
 
    }

Nevermind, you can delete the thread if needed Norm. I figured it out. Thank you.