Truncating Decimal Values

Question

Hi! Folks,
I would like to ask for you kind assistance in figuring out my assignment, how to truncate a decimal value depending on the number of decimal places the user has specified.
Your immediate assistance will be much appreciated.
Cheers!

Answer 1

// utility class
public class Fraction{
   public static double digits(double d, int places){
      return (long)(d*Math.pow(10,places)+0.5)/Math.pow(10,places);
   public static double digits(double d, long places){
      return (long)(d*Math.pow(10,places)+0.5)/Math.pow(10,places);
   public static float digits(float d, int places){
      return (int)(d*Math.pow(10,places)+0.5)/(float)Math.pow(10,places);
   public static float digits(float d, long places){
      return (int)(d*Math.pow(10,places)+0.5)/(float)Math.pow(10,places);
// testing class
public class Dec {
    public static void main(String s[]) {
        int decimalPlaces = 3;     
        double d = 2343.12894132134;
        d = Fraction.digits(d, decimalPlaces);
        System.out.println(d);
}