Java Eclipse Heat Index -

i complete beginner , hardly know basics of java (i've been in class 2 weeks). first assignment calculate heat index based on current temperature , current humidity given user, in java using eclipse. have come code, however, no avail. code ask users input temperature , humidity, not print out results. provided uml diagram required use build code way have better understanding of why did did. ultimately, think problem lies somewhere in process of passing values , different methods... there willing take , possibly guide me in right direction?

import java.util.scanner;  public class heatindexcalculator1 {      private int temperature;     private double humidity;     private double heatindex;      public static void main(string args[]) {          //get current temp , humidity user         scanner input = new scanner(system.in);         system.out.printf("please enter current temperature in degrees fahrenheit: ");         int currenttemp = input.nextint();         system.out.printf("\nplease enter current humidity percentage: ");         double currenthumidity = input.nextdouble();     }      private double calculateheatindex ( int currenttemp, double currenthumidity ) {         //setting parameters function         int temperature = currenttemp;         double humidity = currenthumidity;         double answer;         final double c1 = -42.379;         final double c2 = 2.04901523;         final double c3 = 10.14333127;         final double c4 = -0.22475541;         final double c5 = -.00683783;         final double c6 = -5.481717e-2;         final double c7 = 1.22874e-3;         final double c8 = 8.5282e-4;         final double c9 = -1.99e-6;         int t = temperature;         double r = humidity;         double t2 = temperature * temperature;         double r2 = humidity * humidity;          //function of calculating heat index         double answer = c1 + (c2 * t) + (c3 * r) + (c4 * t * r) + (c5 * t2) + (c6 * r2) + (c7 * t2 * r) + (c8 * t * r2) + (c9 * t2 * r2);          return answer;         }     private void printheatindex( int currenttemp, double currenthumidity, double calculatedheatindex) {          double calculatedheatindex = answer;          //print heat index         system.out.println("\nat temperature of" + currenttemp + "and humidity of" + currenthumidity + "percent . . .\n");         system.out.println("\nit feels like:" + calculatedheatindex + "f");     } } 

you need change main method per below:

    public static void main(string args[]) {              //get current temp , humidity user             scanner input = new scanner(system.in);             system.out.printf("please enter current temperature in degrees fahrenheit: ");             int currenttemp = input.nextint();             system.out.printf("\nplease enter current humidity percentage: ");             double currenthumidity = input.nextdouble(); //creating object of heatindexcalculator class             heatindexcalculator1 heatindex = new heatindexcalculator1(); double x = heatindex.calculateheatindex(..,..); heatindex.printheatindex(currenttemp,currenthumidity,x);         } 

also, compiler may give error because methods in heatindexcalculator1 class private, if change them public works.