1:可以直接在中下面 3个中个: import javax.swing.*; UIManager.LookAndFeel("com.sun.java.swing.plaf.mot.MotLookAndFeel") ; UIManager.LookAndFeel("javax.swing.plaf.metal.MetalLookAndFeel") ; UIManager.LookAndFeel("com.sun.java.swing.plaf.windows.WindowsLookAndFeel") ; 2:或采用菜单来变换: import javax.swing.*; JMenuBar mb = JMenuBar; JMenu file = JMenu("Look & Feel", true); ButtonGroup buttonGroup = ButtonGroup; final UIManager.LookAndFeelInfo info = UIManager.getInstalledLookAndFeels; for ( i = 0; i < info.length; i) { JRadioButtonMenuItem item = JRadioButtonMenuItem(info[i].getName, i 0); final String Name = info[i].getClassName; item.addActionListener( ActionListener { public void actionPerformed(ActionEvent ae) { try { UIManager.LookAndFeel(Name); } catch (Exception e) { .out.prln(e); } SwingUtilities.updateComponentTreeUI(TouchyFeely.this); } }); buttonGroup.add(item); file.add(item); } mb.add(file); JMenuBar(mb); }