Here you can find the source of isRoot()
true
if the user that runs this program is known to have root privileges (based on his name).
public static boolean isRoot()
//package com.java2s; /*// www. j a va 2s . co m * Copyright 2007 ETH Zuerich, CISD * * 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. */ import java.io.File; public class Main { /** * @return <code>true</code> if the user that runs this program is known to have root privileges * (based on his name). */ public static boolean isRoot() { if (isUnix()) { return "root".equals(getUsername()); } else { return "Administrator".equals(getUsername()); } } /** * @return <code>true</code> if the operating system is UNIX like. */ public static boolean isUnix() { return (File.separatorChar == '/'); } /** * @return The name of user that runs this program. */ public static String getUsername() { return System.getProperty("user.name"); } }