Here you can find the source of setJavaLookAndFeel()
public static void setJavaLookAndFeel()
//package com.java2s; /*//from w w w . j a va 2s . co m * This file is part of the QuickServer library * Copyright (C) QuickServer.org * * Use, modification, copying and distribution of this software is subject to * the terms and conditions of the GNU Lesser General Public License. * You should have received a copy of the GNU LGP License along with this * library; if not, you can download a copy from <http://www.quickserver.org/>. * * For questions, suggestions, bug-reports, enhancement-requests etc. * visit http://www.quickserver.org * */ import javax.swing.*; public class Main { public static void setJavaLookAndFeel() { try { UIManager.setLookAndFeel(UIManager .getCrossPlatformLookAndFeelClassName()); } catch (Exception e) { System.out.println("Error setting Java LAF: " + e); } } }