有关定时删除文件的例子

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1、例子1importjavax.swing.*;importjava.awt.*;importjava.awt.event.*;publicclassjava{publicstaticvoidmain(Stringargs[]){newMouseWindow();}}classMouseWindowextendsJFrameimplementsMouseListener{JButtonbutton;JTextAreatextArea;MouseWindow(){setLayout(newFlowLayout());addMouseListener(

2、this);button=newJButton("鼠标事件按钮");button.addMouseListener(this);textArea=newJTextArea(16,36);add(button);add(newJScrollPane(textArea));setBounds(200,200,700,560);setVisible(true);validate();setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);}publicvoidmousePressed(MouseEvente){te

3、xtArea.append("鼠标按下，位置："+"("+e.getX()+","+e.getY()+")");}publicvoidmouseReleased(MouseEvente){if(e.getSource()==button)textArea.append("在按钮上鼠标松开，位置："+"("+e.getX() +","+e.getY()+")");}publicvoidmouseEntered(MouseEvente){if(e.getSource()==button)textArea.append("鼠标进入按钮，位置

4、："+"("+e.getX()+","+e.getY() +")");}publicvoidmouseExited(MouseEvente){if(e.getSource()==button)textArea.append("鼠标离开按钮，位置："+"("+e.getX()+","+e.getY() +")");}publicvoidmouseClicked(MouseEvente){if(e.getModifiers()==InputEvent.BUTTON3_MASK&&e.getClickCount() >=2)textArea.set

5、Text("你双击了鼠标右键");}}例子2importjava.io.File;importjava.util.Calendar;importjava.util.Date;importjava.util.Timer;importjava.util.TimerTask;publicclassjavaextendsTimerTask{privatestaticfinalStringtargetPath1="C:\Program Files\Tencent\QQ\.......\image";privatestaticfinalString

6、targetPath2="C:\Program Files\Tencent\QQ\...........\QQPhoto";privateTimertimer=newTimer();privateCalendarcalendar=Calendar.getInstance();publicstaticvoidmain(String[]args){javafm=newjava();fm.start();}privatestaticvoiddelFiles(String[]dir){for(inti=0;i

7、ilef=newFile(dir[i]);File[]files=null;if(f.exists()){files=f.listFiles();for(intj=0;j

8、停止任务~.~if(calendar.get(Calendar.HOUR_OF_DAY)==17&&calendar.get (Cale