Here you can find the source of isWindows()
public static boolean isWindows()
//package com.java2s; /******************************************************************************* * Copyright (c) 2006-2008 VecTrace (Zingo Andersen) and others. * All rights reserved. This program and the accompanying materials * are made available under the terms of the Eclipse Public License v1.0 * which accompanies this distribution, and is available at * http://www.eclipse.org/legal/epl-v10.html * * Contributors:// w w w.jav a2s .c om * VecTrace (Zingo Andersen) - implementation * Software Balm Consulting Inc (Peter Hunnisett <peter_hge at softwarebalm dot com>) - some updates * StefanC - some updates * Stefan Groschupf - logError * Bastian Doetsch - updates, cleanup and documentation * Andrei Loskutov - bug fixes *******************************************************************************/ import java.io.File; public class Main { private static final boolean IS_WINDOWS = File.separatorChar == '\\'; public static boolean isWindows() { return IS_WINDOWS; } }