Here you can find the source of format_duration(long millis)
public static String format_duration(long millis)
//package com.java2s; /*********************************************************************** PEGASUS: Peta-Scale Graph Mining System Authors: U Kang, Duen Horng Chau, and Christos Faloutsos This software is licensed under 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.//from ww w . java 2s . c o m ------------------------------------------------------------------------- File: PegasusUtils.java - Common utility classes and functions Version: 2.0 ***********************************************************************/ import java.util.*; import java.text.*; public class Main { public static String format_duration(long millis) { String DATE_FORMAT_NOW = "HH:mm:ss"; SimpleDateFormat sdf = new SimpleDateFormat(DATE_FORMAT_NOW); sdf.setTimeZone(TimeZone.getTimeZone("GMT")); return sdf.format(new Date(millis)); } }