搜索引擎

package GUI;

import java.awt.Cursor; import java.awt.Desktop;

import java.awt.event.MouseAdapter; import java.awt.event.MouseEvent; import javax.swing.JFrame; import javax.swing.JLabel; import javax.swing.JPanel; public class LinkLabel extends JLabel { private String text, url; private boolean isSupported; public LinkLabel(String text, String url) { this.text = text; this.url = url; try { this.isSupported = Desktop.isDesktopSupported() && Desktop.getDesktop().isSupported(Desktop.Action.BROWSE); } catch (Exception e) { this.isSupported = false; } setText(false); addMouseListener(new MouseAdapter() { public void mouseEntered(MouseEvent e) { setText(isSupported); if (isSupported) setCursor(new Cursor(Cursor.HAND_CURSOR)); } public void mouseExited(MouseEvent e) { setText(false); } public void mouseClicked(MouseEvent e) { try { Desktop.getDesktop().browse( new java.net.URI(LinkLabel.this.url)); } catch (Exception ex) { } } }); } private void setText(boolean b) { if (!b) setText(\

37

}

}

else setText(\

38