Here you can find the source of durationString(long duration)
public static String durationString(long duration)
//package com.java2s; /*//from w w w .j a v a 2 s . c o m * Copyright 2008 the original author or authors. * * 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. */ public class Main { public static String durationString(long duration) { if (duration < 0L) { return "N/A"; } return Long.toString(duration); } }