Here you can find the source of systemLF()
public static void systemLF()
//package com.java2s; //License from project: Open Source License import javax.swing.*; public class Main { public static void systemLF() { try {/* w w w .ja va2 s .c o m*/ UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName()); } catch (ClassNotFoundException e) { e.printStackTrace(); } catch (InstantiationException e) { e.printStackTrace(); } catch (IllegalAccessException e) { e.printStackTrace(); } catch (UnsupportedLookAndFeelException e) { e.printStackTrace(); } } }