مشكله في(link botton) لايعمل

السلام عليكم

أعضاء ومشرفين المنتدى الأكثر من

رائع

واجهتني مشكله في الكود

الذي يفتح لي رابط لصفحة الأنترنت

بحيث الكود ليس فيه أخطاء

ولكن المشكلة

عند الضغط على الرابط

لايستجيب

لي ولايفتح لي صفحة الأنترنت

والكود موجود أدناه

 

import java.awt.Color;
import java.awt.Cursor;
import java.awt.FontMetrics;
import java.awt.Graphics;
import java.awt.GridLayout;
import java.awt.Rectangle;
import java.net.URL;

import javax.swing.Action;
import javax.swing.ButtonModel;
import javax.swing.Icon;
import javax.swing.JButton;
import javax.swing.JComponent;
import javax.swing.JFrame;
import javax.swing.UIManager;
import javax.swing.plaf.ComponentUI;
import javax.swing.plaf.metal.MetalButtonUI;

public class JLinkButton extends JButton {
  private static final String uiString = "LinkButtonUI";

  public static final int ALWAYS_UNDERLINE = 0;

  public static final int HOVER_UNDERLINE = 1;

  public static final int NEVER_UNDERLINE = 2;

  public static final int SYSTEM_DEFAULT = 3;

  private int linkBehavior;

  private Color linkColor;

  private Color colorPressed;

  private Color visitedLinkColor;

  private Color disabledLinkColor;

  private URL buttonURL;

  private Action defaultAction;

  private boolean isLinkVisited;

  public static void main(String[] a) {
    JFrame f = new JFrame();
    f.getContentPane().setLayout(new GridLayout(0,2));
    f.getContentPane().add(new JLinkButton("www.java2s.com"));
    f.getContentPane().add(new JLinkButton("www.java2s.com/ExampleCode/CatalogExampleCode.htm"));
    f.setSize(600, 200);
    f.setVisible(true);
  }

  public JLinkButton() {
    this(null, null, null);
  }

  public JLinkButton(Action action) {
    this();
    setAction(action);
  }

  public JLinkButton(Icon icon) {
    this(null, icon, null);
  }

  public JLinkButton(String s) {
    this(s, null, null);
  }

  public JLinkButton(URL url) {
    this(null, null, url);
  }

  public JLinkButton(String s, URL url) {
    this(s, null, url);
  }

  public JLinkButton(Icon icon, URL url) {
    this(null, icon, url);
  }

  public JLinkButton(String text, Icon icon, URL url) {
    super(text, icon);
    linkBehavior = SYSTEM_DEFAULT;
    linkColor = Color.blue;
    colorPressed = Color.red;
    visitedLinkColor = new Color(128, 0, 128);
    if (text == null && url != null)
      setText(url.toExternalForm());
    setLinkURL(url);
    setCursor(Cursor.getPredefinedCursor(12));
    setBorderPainted(false);
    setContentAreaFilled(false);
    setRolloverEnabled(true);
    addActionListener(defaultAction);
  }

  public void updateUI() {
    setUI(BasicLinkButtonUI.createUI(this));
  }

  private void setDefault() {
    UIManager.getDefaults().put("LinkButtonUI", "BasicLinkButtonUI");
  }

  public String getUIClassID() {
    return "LinkButtonUI";
  }

  protected void setupToolTipText() {
    String tip = null;
    if (buttonURL != null)
      tip = buttonURL.toExternalForm();
    setToolTipText(tip);
  }

  public void setLinkBehavior(int bnew) {
    checkLinkBehaviour(bnew);
    int old = linkBehavior;
    linkBehavior = bnew;
    firePropertyChange("linkBehavior", old, bnew);
    repaint();
  }

  private void checkLinkBehaviour(int beha) {
    if (beha != ALWAYS_UNDERLINE && beha != HOVER_UNDERLINE
        && beha != NEVER_UNDERLINE && beha != SYSTEM_DEFAULT)
      throw new IllegalArgumentException("Not a legal LinkBehavior");
    else
      return;
  }

  public int getLinkBehavior() {
    return linkBehavior;
  }

  public void setLinkColor(Color color) {
    Color colorOld = linkColor;
    linkColor = color;
    firePropertyChange("linkColor", colorOld, color);
    repaint();
  }

  public Color getLinkColor() {
    return linkColor;
  }

  public void setActiveLinkColor(Color colorNew) {
    Color colorOld = colorPressed;
    colorPressed = colorNew;
    firePropertyChange("activeLinkColor", colorOld, colorNew);
    repaint();
  }

  public Color getActiveLinkColor() {
    return colorPressed;
  }

  public void setDisabledLinkColor(Color color) {
    Color colorOld = disabledLinkColor;
    disabledLinkColor = color;
    firePropertyChange("disabledLinkColor", colorOld, color);
    if (!isEnabled())
      repaint();
  }

  public Color getDisabledLinkColor() {
    return disabledLinkColor;
  }

  public void setVisitedLinkColor(Color colorNew) {
    Color colorOld = visitedLinkColor;
    visitedLinkColor = colorNew;
    firePropertyChange("visitedLinkColor", colorOld, colorNew);
    repaint();
  }

  public Color getVisitedLinkColor() {
    return visitedLinkColor;
  }

  public URL getLinkURL() {
    return buttonURL;
  }

  public void setLinkURL(URL url) {
    URL urlOld = buttonURL;
    buttonURL = url;
    setupToolTipText();
    firePropertyChange("linkURL", urlOld, url);
    revalidate();
    repaint();
  }

  public void setLinkVisited(boolean flagNew) {
    boolean flagOld = isLinkVisited;
    isLinkVisited = flagNew;
    firePropertyChange("linkVisited", flagOld, flagNew);
    repaint();
  }

  public boolean isLinkVisited() {
    return isLinkVisited;
  }

  public void setDefaultAction(Action actionNew) {
    Action actionOld = defaultAction;
    defaultAction = actionNew;
    firePropertyChange("defaultAction", actionOld, actionNew);
  }

  public Action getDefaultAction() {
    return defaultAction;
  }

  protected String paramString() {
    String str;
    if (linkBehavior == ALWAYS_UNDERLINE)
      str = "ALWAYS_UNDERLINE";
    else if (linkBehavior == HOVER_UNDERLINE)
      str = "HOVER_UNDERLINE";
    else if (linkBehavior == NEVER_UNDERLINE)
      str = "NEVER_UNDERLINE";
    else
      str = "SYSTEM_DEFAULT";
    String colorStr = linkColor == null ? "" : linkColor.toString();
    String colorPressStr = colorPressed == null ? "" : colorPressed
        .toString();
    String disabledLinkColorStr = disabledLinkColor == null ? ""
        : disabledLinkColor.toString();
    String visitedLinkColorStr = visitedLinkColor == null ? ""
        : visitedLinkColor.toString();
    String buttonURLStr = buttonURL == null ? "" : buttonURL.toString();
    String isLinkVisitedStr = isLinkVisited ? "true" : "false";
    return super.paramString() + ",linkBehavior=" + str + ",linkURL="
        + buttonURLStr + ",linkColor=" + colorStr + ",activeLinkColor="
        + colorPressStr + ",disabledLinkColor=" + disabledLinkColorStr
        + ",visitedLinkColor=" + visitedLinkColorStr
        + ",linkvisitedString=" + isLinkVisitedStr;
  }
}

class BasicLinkButtonUI extends MetalButtonUI {
  private static final BasicLinkButtonUI ui = new BasicLinkButtonUI();

  public BasicLinkButtonUI() {
  }

  public static ComponentUI createUI(JComponent jcomponent) {
    return ui;
  }

  protected void paintText(Graphics g, JComponent com, Rectangle rect,
      String s) {
    JLinkButton bn = (JLinkButton) com;
    ButtonModel bnModel = bn.getModel();
    Color color = bn.getForeground();
    Object obj = null;
    if (bnModel.isEnabled()) {
      if (bnModel.isPressed())
        bn.setForeground(bn.getActiveLinkColor());
      else if (bn.isLinkVisited())
        bn.setForeground(bn.getVisitedLinkColor());

      else
        bn.setForeground(bn.getLinkColor());
    } else {
      if (bn.getDisabledLinkColor() != null)
        bn.setForeground(bn.getDisabledLinkColor());
    }
    super.paintText(g, com, rect, s);
    int behaviour = bn.getLinkBehavior();
    boolean drawLine = false;
    if (behaviour == JLinkButton.HOVER_UNDERLINE) {
      if (bnModel.isRollover())
        drawLine = true;
    } else if (behaviour == JLinkButton.ALWAYS_UNDERLINE || behaviour == JLinkButton.SYSTEM_DEFAULT)
      drawLine = true;
    if (!drawLine)
      return;
    FontMetrics fm = g.getFontMetrics();
    int x = rect.x + getTextShiftOffset();
    int y = (rect.y + fm.getAscent() + fm.getDescent() + getTextShiftOffset()) - 1;
    if (bnModel.isEnabled()) {
      g.setColor(bn.getForeground());
      g.drawLine(x, y, (x + rect.width) - 1, y);
    } else {
      g.setColor(bn.getBackground().brighter());
      g.drawLine(x, y, (x + rect.width) - 1, y);
    }
  }
}

فأرجو منكم أن تساعدوني في حل المشكله

أو تزويدي بكود أخر يعمل

ولكم من جزيل الشكر

دمتم جمعيا في حفظ الرحمن ورعايته

وجزاكم الله خير