Java tutorial
//package com.java2s; import java.text.NumberFormat; public class Main { /** * * @param value * @param min_fraction_digit * @param max_fraction_digit * @return */ public static String formatNumber(double value, int min_fraction_digit, int max_fraction_digit) { NumberFormat nf; nf = NumberFormat.getInstance(); if (min_fraction_digit != 0) { nf.setMinimumFractionDigits(min_fraction_digit); } if (max_fraction_digit != 0) { nf.setMaximumFractionDigits(max_fraction_digit); } return nf.format(value); } }