距离某天的倒计时.doc

Java 倒计时【收藏】作者：Hapost-开心鬼 来源：BlogJava 发布时间：2009-04-16 09:50 阅读：123 次 原文链接 收藏 /blog/284821最近用java编写了一个倒计时的程序，贴出来与大家共享。先看看截图吧：1.开始打开程序时的界面2.设定好时间，点击“开始计时”时的界面3.定时时间到时的界面4.退出程序时的界面5.同时，本程序具有检测功能，对您的时间输入进行检测下面是源码：package dis_timer;import java.awt.BorderLayout;import java.awt.Color;import java.awt.Dimension;import java.awt.Font;import java.awt.Toolkit;import java.awt.event.ActionEvent;import java.awt.event.ActionListener;import java.awt.event.WindowAdapter;import java.awt.event.WindowEvent;import java.sql.Timestamp;import java.util.Calendar;import java.util.GregorianCalendar;import javax.swing.JButton;import javax.swing.JFrame;import javax.swing.JLabel;import javax.swing.JOptionPane;import javax.swing.JPanel;import javax.swing.JTextField;import javax.swing.UIManager;import javax.swing.UnsupportedLookAndFeelException;public class CountDown extends JFrame implements ActionListener private static final long serialVersionUID = -3439634693767815667L;/定 /义静态长整形常量 private JLabel startTime,pastTime,label1,label2,lyear,lmonth,lday,lhour,lmin,lsec; private JTextField year,month,day,hour,min,sec; private JButton ok; private String str; private int y,m,d,h,mi,s; private boolean runflag=true; public CountDown() super(倒计时牌); init(); this.setSize(450,150); Dimension d = Toolkit.getDefaultToolkit().getScreenSize(); int h = (int) d.getHeight() / 3; int w = (int) d.getWidth() / 3; this.setLocation(w, h); this.setVisible(true); this.setResizable(false); this.setDefaultCloseOperation(JFrame.DO_NOTHING_ON_CLOSE); this.addWindowListener(new WindowAdapter() public void windowClosing(WindowEvent e) int exit=JOptionPane.showConfirmDialog(CountDown.this, 确定退出吗？, 退出, JOptionPane.OK_CANCEL_OPTION); if(exit=JOptionPane.OK_OPTION) System.exit(0); ); private void init() label1=new JLabel(现在距规定时间还有:); label2=new JLabel(); startTime=new JLabel(开始时间：); pastTime=new JLabel(已过时间：); JPanel north=new JPanel(); north.setLayout(new BorderLayout(); north.add(label1,BorderLayout.CENTER); north.add(startTime,BorderLayout.NORTH); this.add(north,BorderLayout.NORTH); this.add(label2,BorderLayout.CENTER); JPanel south=new JPanel(); south.setLayout(new BorderLayout(); JPanel south_center=new JPanel(); Calendar c=Calendar.getInstance(); year=new JTextField(c.get(Calendar.YEAR)+,6); month=new JTextField(c.get(Calendar.MONTH)+1+,4); day=new JTextField(c.get(Calendar.DAY_OF_MONTH)+,4); hour=new JTextField(c.get(Calendar.HOUR_OF_DAY)+,4); min=new JTextField(c.get(Calendar.MINUTE)+,4); sec=new JTextField(c.get(Calendar.SECOND)+,4); lyear=new JLabel(年); lmonth=new JLabel(月); lday=new JLabel(日); lhour=new JLabel(时); lmin=new JLabel(分); lsec=new JLabel(秒); ok=new JButton(开始计时); south_center.add(year); south_center.add(lyear); south_center.add(month); south_center.add(lmonth); south_center.add(day); south_center.add(lday); south_center.add(hour); south_center.add(lhour); south_center.add(min); south_center.add(lmin); south_center.add(sec); south_center.add(lsec); south_center.add(ok); south.add(south_center,BorderLayout.CENTER); south.add(pastTime,BorderLayout.NORTH); this.add(south,BorderLayout.SOUTH); ok.addActionListener(this); label1.setFont(new Font(宋体,Font.BOLD,20); label2.setFont(new Font(宋体,Font.BOLD,26); label1.setForeground(new Color(154,0,255); label2.setForeground(Color.RED); public synchronized void stopthread() runflag=false; public synchronized void startthread() runflag=true; public synchronized boolean getrunflag() return runflag; class MyThread extends Thread Calendar target=null; Calendar startTime=null; long targetInMill=0; long startInMill=0; private MyThread(int y,int m,int d,int h,int mi,int s) target=new GregorianCalendar(y,m-1,d,h,mi,s); startTime=Calendar.getInstance(); startInMill=startTime.getTimeInMillis(); targetInMill=target.getTimeInMillis(); public void run() while(runflag) runflag=true; Calendar today=new GregorianCalendar(); long todayInMill=today.getTimeInMillis(); long dd=targetInMill-todayInMill; long dis=dd/1000; long ms=(dd/100)%10; long mms=(dd/10)%10; String d; int day=(int) (dis/(3600*24); int hour=(int) (dis%(3600*24)/3600); int min=(int) (dis%3600/60); int sec=(int) (dis%60); if(day=10&day100) d= +day; else d=day+; String s=d+ 天 +intToString(hour)+ 小时 +intToString(min)+ 分 +intToString(sec)+ 秒+ms+ +mms; label2.setText(s); pastTime(); if(dd=0) ok.setText(重新开始); JOptionPane.showMessageDialog(CountDown.this, 时间到); break; try Thread.sleep(10); catch (InterruptedException e) e.printStackTrace(); private void pastTime() Calendar today=new GregorianCalendar(); long nowInMill=today.getTimeInMillis(); long dd=nowInMill-startInMill; long dis=dd/1000; long ms=(dd/100)%10; long mms=(dd/10)%10; String d; int day=(int) (dis/(3600*24); int hour=(int) (dis%(3600*24)/3600); int min=(int) (dis%3600/60); int sec=(int) (dis%60); if(day=10&day100) d= +day; else d=day+; String s=d+ 天 +intToString(hour)+ 小时 +intToString(min)+ 分 +intToString(sec)+ 秒+ms+ +mms; pastTime.setText(已过时间：+s); public String intToString(int i) if(i10) str=0+i; return str; else return i+; public void actionPerformed(ActionEvent e) String str=e.getActionCommand(); MyThread t=null; if(str.equals(开始计时) try this.startthread(); startTime.setText(开始时间：+new Timestamp(System.currentTimeMillis(); y=Integer.parseInt(year.getText(); m=Integer.parseInt(month.getText(); d=Integer.parseInt(day.getText(); h=Integer.parseInt(hour.getText(); mi=Integer.parseInt(min.getText(); s=Integer.parseInt(sec.getText(); year.setEditable(false); month.setEditable(false); day.setEditable(false); hour.setEditable(false); min.setEditable(false); sec.setEditable(false);/ ok.setEnabled(false); ok.setText(停止); t=new MyThread(y,m,d,h,mi,s); t.start(); catch (NumberFormatException e1) JOptionPane.s