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++;
} while (d.get(Calendar.MONTH) == month);
count=0;
}
public JPanel getnewtpye(){
return dayPanel;
}
}
//顶部星期的类
class CalendarTop extends JPanel{
private JPanel weekPanel;
public CalendarTop(){
// 星期容器
weekPanel = new JPanel();
weekPanel.setLayout(new GridLayout(1, 7));
addLabel( "星期日 ");
addLabel( "星期一 ");
addLabel( "星期二 ");
addLabel( "星期三 ");
addLabel( "星期四 ");
addLabel( "星期五 ");
addLabel( "星期六 ");
//add(weekPanel, BorderLayout.NORTH);
// 星期容器结束;
}
// 添加星期到容器里;
private void addLabel(String str) {
JLabel weeklabel = new JLabel(str);
weekPanel.add(weeklabel);
}
public JPanel getnewtype(){
return weekPanel;
}
}
//界面布局类
class CalendarFrame extends JFrame {
public CalendarFrame() {
setTitle( "日历 ");
Calendarday dayPanel = new Calendarday();
CalendarTop topPanel=new CalendarTop();
//布局管理器;
setLayout(new BorderLayout());
JPanel jptop=topPanel.getnewtype();
JPanel jpday=dayPanel.getnewtpye();
add(jptop,BorderLayout.NORTH);
add(jpday,BorderLayout.CENTER);
pack();
}
}
public class NewCalendar {
public static void main(String[] args) {
CalendarFrame frame = new CalendarFrame();
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setVisible(true);
}
}
我代码里面有注释鼠标效果的...因为考虑到每次鼠标移动或点击的时候只需要给一个监听器处理.这个监听器又只需要一个.所以我采用了匿名内部类.但是没有任何效果出现.
PS:没试过不用匿名内部类,换普通的内部类..因为思路上这样是行得通的.
求助!!!help!!!!
自学了一个月,想做个小东西给自己,检验一下一个月以来到底学了多少东西和掌握得怎么样.一动手问题就出现了..头疼...
[解决办法]
你只监听了，事件代码还未写全
[解决办法]
就在你的基础上改了一点, 不过感觉实现方法不好,就当抛砖引玉了
public void mouseMoved(MouseEvent event){
if (event.getSource() instanceof JLabel) {
((JLabel)(event.getSource())).setOpaque(true);
((JLabel)(event.getSource())).setBackground(Color.BLUE);
}
}
