Here you can find the source of makePathName(String directoryName, String fileName)
public static String makePathName(String directoryName, String fileName)
//package com.java2s; /*// ww w . j ava 2 s .co m Copyright (C) 2005-2016, by the President and Fellows of Harvard College. 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. Dataverse Network - A web application to share, preserve and analyze research data. Developed at the Institute for Quantitative Social Science, Harvard University. Version 4.0. */ import java.io.File; public class Main { public static String makePathName(String directoryName, String fileName) { String pathName; if (directoryName != null && !directoryName.isEmpty()) { pathName = directoryName + File.separator + fileName; } else { pathName = fileName; } return pathName; } }