机械做卖产品网站,梁山企业网站建设,360安全网址,网站会动的页面怎么做的LookAndFeel可以改变图形界面的风格#xff0c;比如说可以将Java的默认界面改变成仿Windows#xff0c;UNIX等其它风格的界面#xff0c;主要有以下几种界面风格#xff1a;metal(默认):javax.swing.plaf.metal.MetalLookAndFeelwindows:com.sun.java.sw…LookAndFeel可以改变图形界面的风格比如说可以将Java的默认界面改变成仿WindowsUNIX等其它风格的界面主要有以下几种界面风格metal(默认):javax.swing.plaf.metal.MetalLookAndFeelwindows:com.sun.java.swing.plaf.windows.WindowsLookAndFeelnimbus:com.sun.java.swing.plaf.nimbus.NimbusLookAndFeelwindows classic:com.sun.java.swing.plaf.windows.WindowsClassicLookAndFeelunixcom.sun.java.swing.plaf.motif.MotifLookAndFeelmac(需要相关系统):com.sun.java.swing.plaf.mac.MacLookAndFeelGTK(需要相关系统):com.sun.java.swing.plaf.gtk.GTKLookAndFeel也可以通过UIManager.getSystemLookAndFeelClassName()获取当前系统风格UIManager.getCrossPlatformLookAndFeelClassName()获取可跨平台的默认风格动态的改变界面风格主要用到下面两个方法UIManager.setLookAndFeel(String str)设置当前外观为str所指定的SwingUtilities.updateComponentTreeUI(Component c)重新初始化组件的外观举个例子import java.awt.FlowLayout;import java.awt.event.ActionEvent;import java.awt.event.ActionListener;import javax.swing.JButton;import javax.swing.JFrame;import javax.swing.JPanel;import javax.swing.SwingUtilities;import javax.swing.UIManager;import javax.swing.UnsupportedLookAndFeelException;public class LookAndFeel extends JFrame implements ActionListener{private String str;private JButton b1,b2,b3;private JPanel panel;LookAndFeel(){panel new JPanel();panel.setLayout(new FlowLayout());b1 new JButton(windows);b1.addActionListener(this);b2 new JButton(nimbus);b2.addActionListener(this);b3 new JButton(uniux);b3.addActionListener(this);panel.add(b1);panel.add(b2);panel.add(b3);this.add(panel);this.setSize(400, 300);}public void actionPerformed(ActionEvent e) {if(e.getSource()b1){str com.sun.java.swing.plaf.windows.WindowsClassicLookAndFeel;}else if(e.getSource()b2){str com.sun.java.swing.plaf.nimbus.NimbusLookAndFeel;}else if(e.getSource()b3){str com.sun.java.swing.plaf.motif.MotifLookAndFeel;}try {UIManager.setLookAndFeel(str);SwingUtilities.updateComponentTreeUI(this);} catch (Exception e1) {}}public static void main(String str){SwingUtilities.invokeLater(new Runnable() {public void run() {LookAndFeel inst new LookAndFeel();inst.setLocationRelativeTo(null);inst.setVisible(true);}});}}效果图如下nimbusunixwindows
