阅读：6052 输入：2017-10-02

package test;
import java.awt.*;
import java.awt.event.*;
import java.util.*;
import java.text.SimpleDateFormat;
import java.io.*;
class SD extends Frame implements ActionListener,Runnable{
Label text1;
  TextField text2;
  Label text3;
  Label text4;
  Button button1 ;
  Button button2 ;
  Dialog dlg;
  Date nowtime;
  String st;
  boolean tf=false;
  SD(String s)
  {super(s);
   setLayout(new GridLayout(4,2));
   text1=new Label("请输入关机时间(如 06:20)： ",text1.CENTER);
   text2=new TextField(10);
   text3=new Label("现在的时间是：",text3.CENTER);
   nowtime=new Date();
   SimpleDateFormat matter1=new SimpleDateFormat("HH 时 mm 分 ss秒 yyyy年 MM 月DD 日 E");
   text4=new Label(matter1.format(nowtime));
   button1=new Button("确定");
   button2=new Button("取消");
 
   add(text1);
   add(text2);
   add(text3);
   add(text4);
   add(button1);
   add(button2);
   setBounds(100,100,500,150);
   button1.addActionListener(this);
   button2.addActionListener(this);
   
   addWindowListener(new WindowAdapter(){
    public void windowClosing(WindowEvent e){System.exit(0);}
    });
   setVisible(true);
   validate();
 
  }
public void run(){
  while(true){
  nowtime=new Date();
   SimpleDateFormat matter2=new SimpleDateFormat("HH 时 mm 分 ss秒 yyyy年 MM 月DD 日 E");
   text4.setText((matter2.format(nowtime)));
   try{
   Thread.sleep(1000);}
   catch(Exception ex){}
  }}
public void actionPerformed(ActionEvent e)
  {
   String command=e.getActionCommand();
   if(command.equals("确定")){
       st=text2.getText();
       int tj=st.length();
       if(st.equals("")||tj<5){
      
        final Dialog d=new Dialog(this,"错误",true);
        d.add(new Label("你输入的格式错误！请从新输入！例如08:30",Label.CENTER));
        d.addWindowListener(new WindowAdapter()
         {
         public void windowClosing(WindowEvent e){d.dispose();}
         });
        d.setSize(300,100);
        d.setVisible(true);
       }else{
     
       dlg=new Dialog(this,"关机确定",true);
       Panel p=new Panel();
       p.setLayout(new GridLayout(1,2));
       Button button3=new Button("是");
       Button button4=new Button("否");
       p.add(button3);
       p.add(button4);
       button3.addActionListener(new ActionListener()
          {public void actionPerformed(ActionEvent s){
           try{
           Runtime rt=Runtime.getRuntime();
          String   cmd= " C:/Windows/System32/at "+st+" shutdown.exe -s -t 20";         
            rt.exec(cmd);}catch(IOException e){}
         dlg.dispose();}
          });
       button4.addActionListener(new ActionListener()
          {public void actionPerformed(ActionEvent s){
    
          dlg.dispose();}
           });
           dlg.addWindowListener(new WindowAdapter()
         {
         public void windowClosing(WindowEvent e){dlg.dispose();}
         });
        dlg.add(new Label("你确定在"+st+"时关机"),"Center");
        dlg.add(p,"South");
        dlg.setBounds(150,200,200,100);
        dlg.setVisible(true);
        }}
          else if(command.equals("取消")){
         this.dispose();
        }
}
}
 
public class FrameSD{
 public static void main(String arge[]){
 
 SD win= new SD("定时关机程序");
 Thread t=new Thread(win);
 t.start(); 
   
}//main
}//FrameSD