Java开发网 - [求助]JColorChooser为什么加不上去？？

Topic: [求助]JColorChooser为什么加不上去？？

1.[求助]JColorChooser为什么加不上去？？

Posted by: hooligan00011
Posted on: 2004-06-10 21:19

我有一个改前景的菜单，单击后改变TextArea里文字的颜色，但错误，不知为什么？

菜单事件如下：
void foregroundMenuItem_actionPerformed(ActionEvent e) {
Color color = JColorChooser.showDialog(this,"Foreground",TextArea.getBackground());
if(color != null){
TextArea.setBackground(color);
}
this.repaint();
}

错误如下：

java.lang.IllegalArgumentException: Invalid mnemonic index: 3

  at javax.swing.JTabbedPane$Page.setDisplayedMnemonicIndex(JTabbedPane.java:1805)

  at javax.swing.JTabbedPane.setDisplayedMnemonicIndexAt(JTabbedPane.java:1385)

  at javax.swing.plaf.basic.BasicColorChooserUI$PropertyHandler.propertyChange(BasicColorChooserUI.java:234)

  at javax.swing.event.SwingPropertyChangeSupport.firePropertyChange(SwingPropertyChangeSupport.java:264)

  at javax.swing.event.SwingPropertyChangeSupport.firePropertyChange(SwingPropertyChangeSupport.java:232)

  at javax.swing.JComponent.firePropertyChange(JComponent.java:3814)

  at javax.swing.JColorChooser.setChooserPanels(JColorChooser.java:446)

  at javax.swing.plaf.basic.BasicColorChooserUI.installUI(BasicColorChooserUI.java:79)

  at javax.swing.JComponent.setUI(JComponent.java:449)

  at javax.swing.JColorChooser.setUI(JColorChooser.java:209)

  at javax.swing.JColorChooser.updateUI(JColorChooser.java:220)

  at javax.swing.JColorChooser.<init>(JColorChooser.java:183)

  at javax.swing.JColorChooser.<init>(JColorChooser.java:171)

  at javax.swing.JColorChooser.<init>(JColorChooser.java:162)

  at book.book.<init>(book.java:48)

  at book.Application1.<init>(Application1.java:12)

  at book.Application1.main(Application1.java:45)

Exception in thread "main"

2.Re:[求助]JColorChooser为什么加不上去？？ [Re: hooligan00011]	Copy to clipboard
Posted by: ecsoftcn Posted on: 2004-12-15 17:17 public void actionPerformed(ActionEvent event) { JColorChooser fontcolor = new JColorChooser(); mainText.setForeground(fontcolor.showDialog(JavaNoteBookFrame.this,"请选择字体颜色",Color.BLACK)); }