Java Swing 秒表

import java.text.ParseException;

import java.text.SimpleDateFormat;
import java.util.Date;

import javax.swing.JFrame;
import com.yf.SwingConsole;
public class Clock {
public static void main(String[] args) {
// TODO Auto-generated methosd stub
ClockFrame clockframe=new ClockFrame();
clockframe.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
clockframe.setSize(400,530);
clockframe.setVisible(true);
}
}

import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Dimension;
import java.awt.FlowLayout;
import java.awt.Font;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.Timer;
import java.util.TimerTask;
import java.util.Vector;

import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.JTextField;
import javax.swing.border.Border;
import javax.swing.table.DefaultTableModel;

public class ClockFrame extends JFrame {
SimpleDateFormat sdf = new SimpleDateFormat("hh:mm:ss.SSS");
SimpleDateFormat sdfDistance = new SimpleDateFormat("mm:ss.SSS");
private JTextField nowTime;
private JButton startBt;
private JButton resetBt;
public long start = 0;
// private int line=1;//记录行数
private String beforeTime = "";// 上一次时间
private JScrollPane countPane;
private DefaultTableModel defaultModel = null;
private JTable table;

public ClockFrame() {
nowTime = new JTextField("00:00.000");
startBt = new JButton("开始");
resetBt = new JButton("计次");

String[] name = { "序号", "时间", "时间差" };
String[][] data = new String[1][3];
defaultModel = new DefaultTableModel(data, name);
table = new JTable(defaultModel);
table.setPreferredScrollableViewportSize(new Dimension(400, 400));
countPane = new JScrollPane(table);
setLayout(null);
add(nowTime);
nowTime.setBounds(0, 0, 400, 80);
nowTime.setBackground(Color.getHSBColor(88,89,185));
nowTime.setForeground(Color.BLUE);
Font font=new Font("隶书",Font.BOLD,50);
nowTime.setFont(font);
nowTime.setHorizontalAlignment(JTextField.CENTER);
nowTime.setVisible(true);
add(startBt);
startBt.setBounds(0, 80, 200, 50);
startBt.setVisible(true);
add(resetBt);
resetBt.setBounds(200, 80, 200, 50);
resetBt.setVisible(true);
add(countPane);
countPane.setBounds(0, 130, 400, 400);
countPane.setVisible(true);
// add(countTb);
startBt.addActionListener(new MyActionListener());
resetBt.addActionListener(new MyActionListener());
}

class countTask extends TimerTask {
@Override
public void run() {
SimpleDateFormat sdfDistance = new SimpleDateFormat("mm:ss.SSS");
nowTime.setText(sdfDistance.format(System.currentTimeMillis() - start));
}
}

class MyActionListener implements ActionListener {

Date date = new Date();
Timer timer = null;
int line = 0;
long now = 0, bebefore = 0, nowdistance = 0;

public void actionPerformed(ActionEvent e) {
start = date.getTime();
if (e.getActionCommand().equals("开始")) {
startBt.setText("暂停");
resetBt.setText("计次");
//if (timer == null) {
timer = new Timer();
timer.schedule(new countTask(), 0, 10);
//}
}
if (e.getActionCommand().equals("暂停")) {
if (timer != null) {
timer.cancel();
timer = null;
}
try {
Date screen = sdfDistance.parse(nowTime.getText());
System.out.println("the date toString is " + screen.toString());
long screenValue = GetTime(nowTime.getText());
System.out.println(screenValue);
System.out.println(new Date().getTime());
} catch (ParseException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
startBt.setText("开始");
resetBt.setText("重置");
}
if (e.getActionCommand().equals("重置")) {
nowTime.setText("00:00.000");
resetBt.setText("计次");
// timer.cancel();
// getRowCount返回行数，rowcount<0代表已经没有任何行了。
int rowcount = defaultModel.getRowCount() - 1;
for (int i = rowcount - 1; i >= 0; i--) {
defaultModel.removeRow(i);
}
}
if (e.getActionCommand().equals("计次")) {
// 动态添加表格
defaultModel.addRow(new Vector());
// 为表格赋值
++line;
defaultModel.setValueAt(line + "", line - 1, 0);
defaultModel.setValueAt(nowTime.getText(), line - 1, 1);
// System.out.println("行数："+(line++));
System.out.println("现在时间：" + nowTime.getText());
System.out.println("之前时间：" + beforeTime);
now = GetTime(nowTime.getText());
bebefore = GetTime(beforeTime);
nowdistance = now - bebefore;
defaultModel.setValueAt(sdfDistance.format(nowdistance) + "", line - 1, 2);
System.out.println("现在时间转换成：" + now);
System.out.println("之前时间转换成：" + bebefore);
System.out.println("时间差：" + nowdistance);
System.out.println("时间差转化成" + sdfDistance.format(nowdistance));
System.out.println("测试能不能输出");
System.out.println();
beforeTime = nowTime.getText();
}
// 刷新表格
table.revalidate();
}
}

public long GetTime(String time) {
long before = 0;
if ((time == "") || (time == "00:00.000")) {
before = 0;
}
// subString（start,end）,取从start到end 字符串
else {
int front = Integer.parseInt(time.substring(0, 2));
int middle = Integer.parseInt(time.substring(3, 5));
int rear = Integer.parseInt(time.substring(6, time.length()));
before = front * 60000 + middle * 1000 + rear;
}
return before;
}
}