java钟上时刻点的代码 java时钟程序代码
JAVA画时钟代码
import java.awt.*;
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import java.awt.event.*;
import javax.swing.*;
import sun.util.calendar.Gregorian;
import java.util.Calendar;
import java.util.GregorianCalendar;
public class ClockPointer extends JFrame{
int x, y, x0, y0, r, h, olds_x, olds_y, oldm_x, oldm_y, oldh_x, oldh_y,
ss,mm, hh, old_m, old_h, ang;
final double RAD = Math.PI/180;
public ClockPointer(){
super("Java时钟");
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
Image image = getToolkit().getImage("clock.gif");
setIconImage(image);
setSize(400,400);
setBackground(Color.white);
//setLocation(300,150);
this.setLocationRelativeTo(null);
setResizable(true);
int delay = 1000;
//创建一个监听事件
setVisible(true);
ActionListener drawClock = new ActionListener(){
public void actionPerformed(ActionEvent evt){
repaint();
}
};
//创建一个时间计数器,每一秒触发一次
new Timer(delay, drawClock).start();
}
java.text.SimpleDateFormat fmTime = new java.text.SimpleDateFormat("HH:mm:ss");
//绘制图形
public void paint(Graphics g){
super.paint(g);
g.setFont(null);
Graphics2D g2D = (Graphics2D)g;
Insets insets = getInsets();
int L = insets.left/2, T = insets.top/2;
h = getSize().height;
g.setColor(Color.white);
//画圆
g2D.setStroke(new BasicStroke(2.0f));
g.setColor(Color.gray);
g.drawOval(L+40, T+40, h-80, h-80);
r = h/2 - 40;
x0 = 40 + r - 5 + L;
y0 = 40 + r - 5 - T;
ang = 60;
//绘制时钟上的12个字
for(int i = 1;i = 12;i ++){
x = (int)((r+10)*Math.cos(RAD*ang)+x0);
y = (int)((r+10)*Math.sin(RAD*ang)+y0);
g.setColor(Color.black);
g.drawString(""+i, x, h-y);
ang -=30;
}
//获得现在的时间
Calendar now = new GregorianCalendar();
int nowh = now.get(Calendar.HOUR_OF_DAY);
int nowm = now.get(Calendar.MINUTE);
int nows = now.get(Calendar.SECOND);
String st=fmTime.format(now.getTime());
//在窗体上显示时间
g.setColor(Color.pink);
g.fillRect(L, T, 50, 28);
g.setColor(Color.blue);
g.drawString(st,L+2,T+26);
//计算时间与度数的关系
ss = 90 - nows*6;
mm = 90 - nowm*6;
hh = 90 - nowh*30 - nowm/2;
x0 = r+40+L;
y0 = r+40+T;
g2D.setStroke(new BasicStroke(1.2f));
//擦除秒针
//if(olds_x 0){
// g.setColor(getBackground());
// // g.setColor(Color.gray);
// g.drawLine(x0, y0, olds_x, h-olds_y); // (?)
//}
//绘制秒针
x = (int)(r*0.9*Math.cos(RAD*ss))+x0;
y = (int)(r*0.9*Math.sin(RAD*ss))+y0-2*T;
g.setColor(Color.yellow);
g.drawLine(x0, y0, x, h-y);
olds_x = x;
olds_y = y;
g2D.setStroke(new BasicStroke(2.2f));
//擦除分针
//if(old_m!=mm){
// g.setColor(getBackground());
// g.drawLine(x0,y0,oldm_x,h-oldm_y);
//}
//绘制分针
x = (int)(r*0.7*Math.cos(RAD*mm))+x0;
y = (int)(r*0.7*Math.sin(RAD*mm))+y0-2*T;
g.setColor(Color.green);
g.drawLine(x0,y0,x,h-y);
oldm_x = x;
oldm_y = y;
old_m = mm;
g2D.setStroke(new BasicStroke(3.2f));
//擦除时针
//if(old_h!=hh){
// g.setColor(getBackground());
// g.drawLine(x0,y0,oldh_x,h-oldh_y);
//}
//绘制时针
x = (int)(r*0.5*Math.cos(RAD*hh))+x0;
y = (int)(r*0.5*Math.sin(RAD*hh))+y0-2*T;
g.setColor(Color.red);
g.drawLine(x0,y0,x,h-y);
oldh_x = x;
oldh_y = y;
old_h = hh;
}
public static void main(String[] args){
new ClockPointer();
}
}
//整理一下
用 java 写一个clock的类,100毫秒的时钟 求代码。。越简单越好。。最好有注释
这里有一个时钟的类,你看一下吧,不明白你的 100毫秒的时钟 是什么意思。
import java.awt.BasicStroke;
import java.awt.BorderLayout;
import java.awt.Canvas;
import java.awt.Color;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.geom.Line2D;
import java.util.Date;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.Timer;
public class ClockAs extends Canvas implements ActionListener {
static JButton jb = new JButton("开始");
static JButton jb1 = new JButton("暂停");
Date date;
Timer secondTime;
int hour, munite, second;
Line2D secondLine, muniteLine, hourLine;
int a, b, c;
double pointSX[] = new double[60],// 用来表示秒针端点坐标的数组
pointSY[] = new double[60], pointMX[] = new double[60], // 用来表示分针端点坐标的数组
pointMY[] = new double[60], pointHX[] = new double[60], // 用来表示时针端点坐标的数组
pointHY[] = new double[60];
ClockAs() {
secondTime = new Timer(1000, this);
pointSX[0] = 0; // 12点秒针位置
pointSY[0] = -100;
pointMX[0] = 0; // 12点分针位置
pointMY[0] = -90;
pointHX[0] = 0; // 12点时针位置
pointHY[0] = -70;
double angle = 6 * Math.PI / 180; // 刻度为6度
for (int i = 0; i 59; i++) // 计算出各个数组中的坐标
{
pointSX[i + 1] = pointSX[i] * Math.cos(angle) - Math.sin(angle)
* pointSY[i];
pointSY[i + 1] = pointSY[i] * Math.cos(angle) + pointSX[i]
* Math.sin(angle);
pointMX[i + 1] = pointMX[i] * Math.cos(angle) - Math.sin(angle)
* pointMY[i];
pointMY[i + 1] = pointMY[i] * Math.cos(angle) + pointMX[i]
* Math.sin(angle);
pointHX[i + 1] = pointHX[i] * Math.cos(angle) - Math.sin(angle)
* pointHY[i];
pointHY[i + 1] = pointHY[i] * Math.cos(angle) + pointHX[i]
* Math.sin(angle);
}
for (int i = 0; i 60; i++) {
pointSX[i] = pointSX[i] + 120; // 坐标平移
pointSY[i] = pointSY[i] + 120;
pointMX[i] = pointMX[i] + 120; // 坐标平移
pointMY[i] = pointMY[i] + 120;
pointHX[i] = pointHX[i] + 120; // 坐标平移
pointHY[i] = pointHY[i] + 120;
}
secondLine = new Line2D.Double(0, 0, 0, 0);
muniteLine = new Line2D.Double(0, 0, 0, 0);
hourLine = new Line2D.Double(0, 0, 0, 0);
secondTime.start(); // 秒针开始计时
}
public void paint(Graphics g) {
for (int i = 0; i 60; i++) // 绘制表盘上的小刻度和大刻度
{
int m = (int) pointSX[i];
int n = (int) pointSY[i];
if (i % 5 == 0) {
g.setColor(Color.red);
g.fillOval(m - 4, n - 4, 8, 8);
} else {
g.setColor(Color.cyan);
g.fillOval(m - 2, n - 2, 4, 4);
}
}
g.fillOval(115, 115, 10, 10); // 钟表中心的实心圆
Graphics2D g_2d = (Graphics2D) g;
g_2d.setColor(Color.red);
g_2d.draw(secondLine);
BasicStroke bs = new BasicStroke(3f, BasicStroke.CAP_ROUND,
BasicStroke.JOIN_MITER);
g_2d.setStroke(bs);
g_2d.setColor(Color.blue);
g_2d.draw(muniteLine);
bs = new BasicStroke(6f, BasicStroke.CAP_BUTT, BasicStroke.JOIN_MITER);
g_2d.setStroke(bs);
g_2d.setColor(Color.green);
g_2d.draw(hourLine);
}
public void actionPerformed(ActionEvent e) {
if (e.getSource() == secondTime) {
date = new Date();
String s = date.toString();
hour = Integer.parseInt(s.substring(11, 13));
munite = Integer.parseInt(s.substring(14, 16));
second = Integer.parseInt(s.substring(17, 19)); // 获取时间中的秒
int h = hour % 12;
a = second; // 秒针端点的坐标
b = munite; // 分针端点的坐标
c = h * 5 + munite / 12; // 时针端点的坐标
secondLine.setLine(120, 120, (int) pointSX[a], (int) pointSY[a]);
muniteLine.setLine(120, 120, (int) pointMX[b], (int) pointMY[b]);
hourLine.setLine(120, 120, (int) pointHX[c], (int) pointHY[c]);
repaint();
}
if (e.getSource() == jb) {
secondTime.start();
}
if (e.getSource() == jb1) {
secondTime.stop();
}
}
public static void main(String args[]) {
JFrame win = new JFrame("时钟");
JPanel jp = new JPanel();
jp.add(jb);
jp.add(jb1);
ClockAs clock = new ClockAs();
jb.addActionListener(clock);
jb1.addActionListener(clock);
win.add(clock, BorderLayout.CENTER);
win.add(jp, "South");
win.setVisible(true);
win.setSize(246, 300);
win.setDefaultCloseOperation(3);
win.validate();
}
}
java程序 时钟 整点报时代码
import java.awt.*;
import java.util.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.Timer;
public class Test extends JFrame implements ActionListener{
Timer t=new Timer(1000,this);
GregorianCalendar calendar=new GregorianCalendar();
JLabel label1=new JLabel(new Date().toString()),
label2=new JLabel("
");
public Test(){
super("TIME");
Container c=this.getContentPane();
c.setLayout(new FlowLayout());
c.add(label1);c.add(label2);
t.start();
this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
this.setBounds(200,200,200,100);
this.setVisible(true);
}
public void actionPerformed(ActionEvent e){
Date date=new Date();
calendar.setTime(date);
if(e.getSource()==t){
label1.setText(date.toString());
if(calendar.get(Calendar.MINUTE)==0)//当分钟为0报时
if(calendar.get(Calendar.SECOND)=5){//持续5秒报时
if(calendar.get(Calendar.SECOND)%2==0)
label2.setText("现在是北京时间"+calendar.get(Calendar.HOUR_OF_DAY)+"点整。");
if(calendar.get(Calendar.SECOND)%2==1)
label2.setText("
");
}
}
}
public static void main (String[] args) {
new Test();
}
}
求java的计时器代码,应该比较简单的,来看看吧。
package test;
import java.util.*;
import java.awt.*;
import java.awt.event.*;
import java.applet.*;
public class Test5 extends Applet {
private final Panel pan = new Panel();
private final Label time = new Label();
private final Button btnGo = new Button("开始");
private final Button btnPouse = new Button("暂停");
private final Button btnReset = new Button("复位");
private final StopwatchThread swThread = new StopwatchThread();
private class btnGoListener implements ActionListener {
public void actionPerformed(ActionEvent e) {
swThread.go();
btnGo.setEnabled(false);
}
}
private class btnPouseListener implements ActionListener {
public void actionPerformed(ActionEvent e) {
if(btnGo.isEnabled()){
return ;
}
if (btnPouse.getLabel().equals("继续")) {
swThread.go();
btnPouse.setLabel("暂停");
} else if (btnPouse.getLabel().equals("暂停")) {
swThread.noGo();
btnPouse.setLabel("继续");
}
}
}
private class btnResetListener implements ActionListener {
public void actionPerformed(ActionEvent e) {
swThread.reset();
btnGo.setEnabled(true);
btnGo.setLabel("开始");
btnPouse.setLabel("暂停");
}
}
private class StopwatchThread extends Thread {
private boolean going = false;
private long prevElapsed = 0;
private Date startDate = new Date();
private long elapsedTime() {
return prevElapsed +
(going ? new Date().getTime() - startDate.getTime() : 0);
}
private String msToString(long time) {
System.out.println(time+" "+((0*60+2)*1000+999));
if(((99*60+59)*1000+983)=time((99*60+59)*1000+999)=time){//((0*60+2)*1000+983)=time((0*60+2)*1000+999)=time
if (time % 1000 990)
time += 2;
swThread.noGo();
}
String ms, sec, min;
if (time % 10 = 5)
time += 5;
ms = Long.toString(time % 1000);
while (ms.length() 3)
ms = "0" + ms;
ms = ms.substring(0, ms.length() - 1);
time /= 1000;
sec = Long.toString(time % 60);
if (sec.length() == 1) sec = "0" + sec;
time /= 60;
min = Long.toString(time);
return min + ":" + sec + "." + ms;
}
public void go() {
startDate = new Date();
going = true;
}
public void noGo() {
prevElapsed = elapsedTime();
going = false;
}
public void reset() {
going = false;
prevElapsed = 0;
}
public void run() {
while (true) {
time.setText(msToString(elapsedTime()));
yield();
}
}
}
public void init() {
setLayout(new GridLayout(2,2));
setBackground(Color.lightGray);
setForeground(Color.black);
pan.setLayout(new GridLayout(3,2));
pan.add(new Label("计时:"));
time.setForeground(Color.blue);
pan.add(time);
pan.add(btnGo);
pan.add(btnPouse);
pan.add(btnReset);
pan.add(new Label());
add(pan);
btnGo.addActionListener(new btnGoListener());
btnReset.addActionListener(new btnResetListener());
btnPouse.addActionListener(new btnPouseListener());
swThread.setDaemon(true);
swThread.start();
}
public static void main(String[] args) {
Test5 applet = new Test5();
Frame aFrame = new Frame("计时器");
aFrame.addWindowListener(new WindowAdapter() {
public void windowClosing(WindowEvent e) {
System.exit(0);
}
});
aFrame.add(applet, BorderLayout.CENTER);
aFrame.setSize(400, 200);
applet.init();
applet.start();
aFrame.setVisible(true);
}
}
可以改变有注释的那个if语句里面的值来判断什么时候停止
java闹钟程序代码
搞不懂为什么要匿名提问,真的那么怕笑话,不至于吧!
import java.util.Timer;
import java.util.Date;
import java.text.SimpleDateFormat;
public class Alarm
{
public static void main(String[] args)
{
Timer timer = new Timer();
try{
timer.schedule(new task(),1000,1000);
}
catch(IllegalStateException e)
{
System.out.println("时间到");
}
}
static class task extends java.util.TimerTask
{
public void run()
{
Date now = new Date();
SimpleDateFormat time = new SimpleDateFormat("HH:mm:ss");
if(time.format(now).toString.equals("23:27:00"))
this.cancel();
else
System.out.println(time.format(now));
}
}
}
JAVA 编写时钟程序
分太少了啊
给你一个只实现了时钟的面板。
import java.util.*;
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import javax.swing.Timer;
public class Clock extends JFrame implements ActionListener
{
private static final long serialVersionUID = 6790815213225162093L;
Timer timer;
int x,y,old_X,old_Y, r,x0,y0,w,h,ang;
int sdo,mdo,hdo,old_M,old_H;
TimeZone tz =TimeZone.getTimeZone("JST");
final double RAD=Math.PI/180.0;
public Clock()
{
super("时钟");
setSize(300,300);
setBackground(new Color(0,0,192));
setResizable(false);
Dimension scr=Toolkit.getDefaultToolkit().getScreenSize();
Dimension fra=this.getSize();
if(fra.widthscr.width)
{
fra.width=scr.width;
}
if(fra.heightscr.height)
{
fra.height=scr.height;
}
this.setLocation((scr.width-fra.width)/2,(scr.height-fra.height)/2);
setVisible(true);
int delay = 1000;
ActionListener taskPerformer = new ActionListener()
{
public void actionPerformed(ActionEvent evt)
{
repaint();
}
};
new Timer(delay, taskPerformer).start();
}
public void actionPerformed(ActionEvent e)
{
timer.restart();
}
public void paint( Graphics g )
{
Insets insets = getInsets();
int L0 = (insets.left)/2, T0 = (insets.top)/2;
int hh,mm,ss;
String st;
h=getSize().height;
g.setColor(Color.white);
g.drawOval(L0+30,T0+30,h-60,h-60);
g.drawOval(L0+32,T0+32,h-64,h-64);
r=h/2-30;
x0=30+r-5+L0;
y0=30+r-5-T0;
ang=60;
for (int i=1; i=12; i++)
{
x=(int)((r+10)*Math.cos(RAD*ang)+x0);
y=(int)((r+10)*Math.sin(RAD*ang)+y0);
g.drawString(""+i,x,h-y);
ang-=30;
}
x0=30+r+L0; y0=30+r+T0;
Calendar now=Calendar.getInstance();
hh=now.get(Calendar.HOUR_OF_DAY);
mm=now.get(Calendar.MINUTE);
ss=now.get(Calendar.SECOND);
g.setColor(Color.pink);
g.fillRect(L0,T0,60,28);
g.setColor(Color.blue);
if (hh 10) st="0"+hh; else st=""+hh;
if (mm 10) st=st+":0"+mm; else st=st+":"+mm;
if (ss 10) st=st+":0"+ss; else st=st+":"+ss;
g.drawString(st,L0,T0+25);
sdo=90-ss*6;
mdo=90-mm*6;
hdo=90-hh*30-mm/2;
if (old_X 0)
{
g.setColor(getBackground());
g.drawLine(x0,y0,old_X,(h-old_Y));
} else
{
old_M=mdo;
old_H=hdo;
}
g.setColor(Color.yellow);
x=(int)((r-8)*Math.cos(RAD*sdo)+x0);
y=(int)((r-8)*Math.sin(RAD*sdo)+y0)-2*T0;
g.drawLine(x0,y0,x,(h-y));
old_X=x;
old_Y=y;
if (mdo != old_M)
{
line(g,old_M,(int)(r*0.7),getBackground());
old_M=mdo;
}
if (hdo != old_H)
{
line(g,old_H,(int)(r*0.5),getBackground());
old_H=hdo;
}
line(g,mdo,(int)(r*0.7),Color.green);
line(g,hdo,(int)(r*0.5),Color.red);
}
public void line(Graphics g, int t, int n, Color c)
{
int [] xp = new int[4];
int [] yp = new int[4];
xp[0]=x0;
yp[0]=y0;
xp[1]= (int)((n-10)*Math.cos(RAD*(t-4))+x0);
yp[1]=h-(int)((n-10)*Math.sin(RAD*(t-4))+y0);
xp[2]= (int)( n *Math.cos(RAD* t )+x0);
yp[2]=h-(int)( n *Math.sin(RAD* t )+y0);
xp[3]= (int)((n-10)*Math.cos(RAD*(t+4))+x0);
yp[3]=h-(int)((n-10)*Math.sin(RAD*(t+4))+y0);
g.setColor(c);
g.fillPolygon(xp,yp,4);
}
public static void main(String args[])
{
new Clock();
}
}
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