Here you can find the source of setCrossPlatformProperties()
public static void setCrossPlatformProperties()
//package com.java2s; /*//from w ww. ja v a2 s . c o m * LaukvikPDI is the java implementation of the Internet Mail * Consortium's vCard and vCalendar. * * Copyright (C) 2005 Morten Laukvik * * 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 2 * 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, write to the Free Software * Foundation, Inc., 51 Franklin Street, * Fifth Floor, Boston, MA 02110-1301, USA. */ import javax.swing.UIManager; public class Main { public static void setCrossPlatformProperties() { if (System.getProperty("os.name").startsWith("Mac")) { System.setProperty("apple.laf.useScreenMenuBar", "true"); } try { UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName()); } catch (Exception e) { } } }