Here you can find the source of formatTimeDifference(long ms)
public static String formatTimeDifference(long ms)
//package com.java2s; /**//from w ww.j av a2 s . co m * The contents of this file are subject to the OpenMRS Public License * Version 1.0 (the "License"); you may not use this file except in * compliance with the License. You may obtain a copy of the License at * http://license.openmrs.org * * Software distributed under the License is distributed on an "AS IS" * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the * License for the specific language governing rights and limitations * under the License. * * Copyright (C) OpenMRS, LLC. All Rights Reserved. */ public class Main { public static String formatTimeDifference(long ms) { if (ms < 1000) { return "< 1 second"; } long seconds = ms / 1000; if (seconds < 60) { return ((int) seconds) + " seconds"; } int minutes = (int) seconds / 60; return minutes + " minutes"; } }