Here you can find the source of isParent(Path parent, Path child)
static boolean isParent(Path parent, Path child)
//package com.java2s; /**/*from ww w .ja v a 2 s . c om*/ * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see http://www.gnu.org/licenses/. */ import java.nio.file.*; public class Main { static boolean isParent(Path parent, Path child) { parent = parent.normalize().toAbsolutePath(); child = child.normalize().toAbsolutePath(); return child.getNameCount() > parent.getNameCount() && child.startsWith(parent); } }