求助!匿名类中的鼠标事件无响应?在线等!!!感谢了
import   java.awt.*;
import   java.awt.event.*;
import   javax.swing.*;
import   java.util.*;
 
class   Calendarday   extends   JPanel   {
 
private   JPanel   dayPanel;
 
private   static   int   count   =   0;
 
private   JLabel[]   label;
 
GregorianCalendar   d   =   new   GregorianCalendar();
GregorianCalendar   day   =   new   GregorianCalendar();
 
public   Calendarday()   {
//   日期容器开始:

day.set(Calendar.DAY_OF_MONTH,   1);
int   weekday   =   day.get(Calendar.DAY_OF_WEEK);

dayPanel   =   new   JPanel();
//   根据每月的第一天来判断,决定日期表格容器的大小:
if   (weekday   ==   7   ||   weekday==6)   {
dayPanel.setLayout(new   GridLayout(6,   7));
label   =   new   JLabel[42];
for   (int   i   =   0;   i   <   label.length;   i++)   {
label[i]   =   new   JLabel( "       ");
dayPanel.add(label[i]);
}
}   else   {
dayPanel.setLayout(new   GridLayout(5,   7));
label   =   new   JLabel[35];
for   (int   i   =   0;   i   <   label.length;   i++)   {
label[i]   =   new   JLabel( "       ");
dayPanel.add(label[i]);
}
for(JLabel   l:label){
//鼠标效果
l.addMouseListener(new   MouseListener(){
public   void   mousePressed(MouseEvent   event){}
public   void   mouseClicked(MouseEvent   event){}
public   void   mouseExited(MouseEvent   event){}
public   void   mouseEntered(MouseEvent   event){}
public   void   mouseReleased(MouseEvent   event){}

});
l.addMouseMotionListener(new   MouseMotionListener(){
public   void   mouseMoved(MouseEvent   event){
setBackground(Color.BLUE);
}
public   void   mouseDragged(MouseEvent   event){

}
});
}

}
//   日期表格容器结束;
 
printcalendar();
}
 
 
//   输出日期表
private   void   printcalendar()   {
int   today   =   d.get(Calendar.DAY_OF_MONTH);
int   month   =   d.get(Calendar.MONTH);

 
d.set(Calendar.DAY_OF_MONTH,   1);
int   weekday   =   d.get(Calendar.DAY_OF_WEEK);

for   (int   i   =   Calendar.SUNDAY;   i   <   weekday;   i++)   {
label[count].setText( "       ");
count++;
}
System.out.println(today);
 
do   {
int   day   =   d.get(Calendar.DAY_OF_MONTH);
label[count].setText(Integer.toString(day));
if   (day   ==   today)   {
label[count].setText(label[count].getText()   +   "* ");
}   else   {
label[count].setText(label[count].getText()   +   "     ");
}

d.add(Calendar.DAY_OF_MONTH,   1);
weekday   =   d.get(Calendar.DAY_OF_WEEK);
count++;