Here you can find the source of formatMillisAsNumber(long millis)
public static String formatMillisAsNumber(long millis)
//package com.java2s; /*/*from w w w . ja v a 2 s . c o m*/ * Copyright 2015 JBoss Inc * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ import java.math.BigDecimal; import java.text.DecimalFormat; import java.text.NumberFormat; public class Main { protected static final NumberFormat MILLIS_NUMBER_FORMAT = new DecimalFormat( "#0.000"); protected static final BigDecimal MILLIS_DIVISOR = new BigDecimal(1000L); public static String formatMillisAsNumber(long millis) { BigDecimal value = new BigDecimal(millis).divide(MILLIS_DIVISOR, 3, BigDecimal.ROUND_HALF_UP); return MILLIS_NUMBER_FORMAT.format(value); } }