gameCoinConverter

import java.util.Random;
import java.util.Scanner;

public class HelloWorld {

  // Static method/function for calculation
  static double calcularInflacao(double min, double max, Random rand) {
    return min + (max - min) * rand.nextDouble();
    }

  public static void main(String[] args) {
   
    Scanner scan = new Scanner(System.in);
    Random rand = new Random();
   
    // Valors for $ 1 USD convertion base rates
    double taxRupees = 0.44;
    double taxGil = 54.87;
    double taxGolden = 2.23;

    double max = 0.05;
    double min = -0.03;

    System.out.println("What's your $USD balance?");
    double usdValor = scan.nextDouble();

    // Inflation calculation values
    double infRupees = calcularInflacao(min, max, rand);
    double infGil = calcularInflacao(min, max, rand);
    double infGolden = calcularInflacao(min, max, rand);

    // Use of the 1+ for inflation calculation
    double calcRupees = taxRupees * (1 + infRupees);
    double calcGil = taxGil * (1 + infGil);
    double calcGolden = taxGolden * (1 + infGolden);

    // Converted amounts calculation
    double convertedRupees = usdValor * calcRupees ;
    double convertedGil = usdValor * calcGil;
    double convertedGolden = usdValor * calcGolden;

    System.out.printf("\nRupees: %.2f%n", convertedRupees);
    System.out.printf("\nGil: %.2f%n", convertedGil);
    System.out.printf("\nGolden: %.2f%n", convertedGolden);
   
    scan.close();
  }
}