Influence Calculator

import java.util.*;

public class InfCalc
{
   public int endos;
   public int updates;
   public int currentSPDR;
   public double SPDRatDate;
   public int lowerTI;
   public int higherTI;
   public int i;

   public InfCalc(int currentSPDR, int endos, int updates)
   {
      this.currentSPDR = currentSPDR;
      this.endos = endos;
      this.updates = updates;
      SPDRatDate = Math.sqrt(((endos +1) * updates) + (currentSPDR * currentSPDR));
      lowerTI = (currentSPDR * currentSPDR);
      higherTI = (((currentSPDR + 1) * (currentSPDR + 1)) - 1);
      i = (int)SPDRatDate;
   }

   public int getSPDR()
   {
      return i;
   }

   public int getLowerTI()
   {
      return lowerTI;
   }

   public int getHigherTI()
   {
      return higherTI;
   }

   public static void main(String args[])
   {
      char run = 'y';
      while(run == 'y'){
      Scanner scan = new Scanner(System.in);
      System.out.println("Enter your current SPDR.");
      int currentSPDR = scan.nextInt();

      System.out.println("Enter your current number of endorsements.");
      int endos = scan.nextInt();

      System.out.println("Enter the number of updates.");
      int updates = scan.nextInt();

      InfCalc result = new InfCalc(currentSPDR, endos, updates);
      System.out.println("In " + result.updates + " updates, your SPDR will be at least " + result.getSPDR());
      System.out.print("Your current true influence range is between ");
      System.out.println( + result.getLowerTI() + " and " + result.getHigherTI());

      Scanner input = new Scanner(System.in);
      System.out.print("Would you like to do another calculation? ");
      System.out.println("y/n");
      run = input.nextLine().charAt(0);

      }
   }
}