简单的Java秒表计时器（线程）
秒表的个个位数的计算：package Seconds;
public class Watch_time extends Thread{
int ms,ms_1,ms_2;
int s,s_1;
int m,m_1;
Watch w;
public void set(Watch w) {
this.w=w;
}
public void setNum() {
ms=ms_1= s=s_1=m=m_1=0;
}
public void run() {
while(true) {
try {
Thread.sleep(9);
ms_1++;
if(ms_1==10) {
ms_1=0;
ms++;
}
if(ms==10) {
ms=0;
s_1++;
}
if(s_1==10) {
s_1=0;
s++;
}
if(s==6) {
s=0;
m_1++;
}
if(m_1==10) {
m_1=0;
m++;
}
w.textArea.setText(m+""+m_1+":"+s+""+s_1+"."+ms+""+ms_1);
} catch (InterruptedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
}
Frame类：
可视化界面package Seconds;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.border.EmptyBorder;
import javax.swing.JTextArea;
import javax.swing.GroupLayout;
import javax.swing.GroupLayout.Alignment;
import javax.swing.JButton;
import java.awt.event.ActionListener;
import java.awt.event.ActionEvent;
import javax.swing.JScrollPane;
import java.awt.SystemColor;
import java.awt.Font;
import javax.swing.UIManager;
import javax.swing.LayoutStyle.ComponentPlacement;
import org.eclipse.wb.swing.FocusTraversalOnArray;
import java.awt.Component;
import java.awt.Color;
public class Watch extends JFrame {
/**
*
*/
private static final long serialVersionUID = 1L;
private JPanel contentPane;
JTextArea textArea = new JTextArea();
int a=1;
int i=0;
public Watch(Watch_time w) {
setTitle("\u79D2\u8868\u8BA1\u65F6\u5668 --\u00A9Dong");
textArea.setText("00:00.00");
setVisible(true);
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
setBounds(100, 100, 450, 300);
contentPane = new JPanel();
JScrollPane scrollPane = new JScrollPane();
scrollPane.setEnabled(false);
contentPane.setBorder(new EmptyBorder(5, 5, 5, 5));
setContentPane(contentPane);
JTextArea textArea_1 = new JTextArea();
textArea_1.setFont(new Font("Monospaced", Font.BOLD | Font.ITALIC, 13));
textArea_1.setEditable(false);
textArea_1.setBackground(UIManager.getColor("Button.background"));
JTextArea textArea_2 = new JTextArea();
textArea_2.setFont(UIManager.getFont("Viewport.font"));
textArea_2.setEditable(false);
textArea_2.setText(" \u51C6\u5907\u8BA1\u65F6");
textArea_2.setBackground(SystemColor.control);
JButton btnNewButton=new CircleButton("开始",Color.GREEN);
btnNewButton.setBackground(Color.CYAN);
JButton btnNewButton_1=new CircleButton("\u8BB0\u5F55",Color.GREEN);
JButton btnNewButton_2=new CircleButton("\u91CD\u7F6E",Color.GREEN);
btnNewButton.addActionListener(new ActionListener() {
@SuppressWarnings("deprecation")
public void actionPerformed(ActionEvent e) {
if(btnNewButton.getText().equals("开始"))
{
if(a==1) {
w.start();
textArea_2.setText(" 正在计时");
btnNewButton_1.setEnabled(true);
btnNewButton_2.setEnabled(false);
btnNewButton.setText("暂停");
a=2;
}
else {
textArea_2.setText(" 正在计时");
btnNewButton_1.setEnabled(true);
btnNewButton_2.setEnabled(false);
w.resume();
btnNewButton.setText("暂停");
}
}
else {
textArea_2.setText(" 暂 "+" 停");
btnNewButton_1.setEnabled(false);
btnNewButton_2.setEnabled(true);
w.suspend();
btnNewButton.setText("开始");
}
}
});
btnNewButton_1.setEnabled(false);
btnNewButton_1.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
textArea_1.append("第"+(++i)+"次计数:"+textArea.getText()+'\n');
}
});
btnNewButton_2.setEnabled(false);
btnNewButton_2.addActionListener(new ActionListener() {
@SuppressWarnings("deprecation")
public void actionPerformed(ActionEvent e) {
textArea_1.setText("");
i=0;
btnNewButton_2.setEnabled(false);
textArea.setText("00:00.00");
textArea_2.setText(" 准备计时");
w.suspend();
w.setNum();
}
});
GroupLayout gl_contentPane = new GroupLayout(contentPane);
gl_contentPane.setHorizontalGroup(
gl_contentPane.createParallelGroup(Alignment.TRAILING)
.addComponent(scrollPane, GroupLayout.DEFAULT_SIZE, 425, Short.MAX_VALUE)
.addGroup(gl_contentPane.createSequentialGroup()
.addGap(48)
.addComponent(btnNewButton, GroupLayout.PREFERRED_SIZE, 77, GroupLayout.PREFERRED_SIZE)
.addGap(38)
.addGroup(gl_contentPane.createParallelGroup(Alignment.LEADING)
.addGroup(gl_contentPane.createSequentialGroup()
.addComponent(btnNewButton_2, GroupLayout.PREFERRED_SIZE, 72, GroupLayout.PREFERRED_SIZE)
.addGap(44)
.addComponent(btnNewButton_1, GroupLayout.PREFERRED_SIZE, 72, GroupLayout.PREFERRED_SIZE)
.addContainerGap())
.addGroup(Alignment.TRAILING, gl_contentPane.createSequentialGroup()
.addComponent(textArea, GroupLayout.PREFERRED_SIZE, 128, GroupLayout.PREFERRED_SIZE)
.addContainerGap(134, Short.MAX_VALUE))
.addGroup(Alignment.TRAILING, gl_contentPane.createSequentialGroup()
.addComponent(textArea_2, GroupLayout.DEFAULT_SIZE, 84, Short.MAX_VALUE)
.addGap(178))))
);
gl_contentPane.setVerticalGroup(
gl_contentPane.createParallelGroup(Alignment.TRAILING)
.addGroup(gl_contentPane.createSequentialGroup()
.addComponent(scrollPane, GroupLayout.DEFAULT_SIZE, 64, Short.MAX_VALUE)
.addGap(33)
.addComponent(textArea, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE)
.addPreferredGap(ComponentPlacement.RELATED)
.addComponent(textArea_2, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE)
.addGap(15)
.addGroup(gl_contentPane.createParallelGroup(Alignment.BASELINE)
.addComponent(btnNewButton_2, GroupLayout.PREFERRED_SIZE, 68, GroupLayout.PREFERRED_SIZE)
.addComponent(btnNewButton, GroupLayout.PREFERRED_SIZE, 66, GroupLayout.PREFERRED_SIZE)
.addComponent(btnNewButton_1, GroupLayout.PREFERRED_SIZE, 66, GroupLayout.PREFERRED_SIZE))
.addGap(44))
);
textArea.setEditable(false);
textArea.setFont(new Font("Monospaced", Font.BOLD | Font.ITALIC, 16));
textArea.setBackground(SystemColor.control);
scrollPane.setViewportView(textArea_1);
contentPane.setLayout(gl_contentPane);
contentPane.setFocusTraversalPolicy(new FocusTraversalOnArray(new Component[]{scrollPane, btnNewButton, textArea_1, btnNewButton_1, textArea, btnNewButton_2, textArea_2}));
}
}