java时钟源代码 java简单时钟代码及详细解释

用JAVA编一个小闹钟

import java.awt.*;

import java.awt.event.*;

import java.util.*;

import javax.swing.*;

import javax.swing.Timer;

public class Clock extends JFrame implements ActionListener {

public final int HEIGTH = 200, L0 = 50, T0 = 50,N=8;

public final double RAD = Math.PI / 180.0;

int x, y, old_X, old_Y, r, x0, y0, w, h, ang;

int sdo, mdo, hdo, old_M, old_H, hh, mm, ss;

int delay = 1000;

Calendar now;

String st, alarm, Items1, Items2,str[];

JButton jb;

JComboBox jc1, jc2, jc3;

JLabel jl1, jl2, jl3, jl4;

JMenu jm1, jm2, jm3, jm4;

JMenuBar jmb;

JMenuItem jmi1, jmi2, jmi3, jmi4, jmi5, jmi6, jmi7, jmi8, jmi9,jmi10;

JTextField jtf1, jtf2, time;

JPanel jp1, jp2, jp3;

Timer timer;

TimeZone tz = TimeZone.getTimeZone("JST");

Toolkit toolkit=Toolkit.getDefaultToolkit();;

/**

* br

* 方法说明：实现ActionListener类必须过载的方法

*/

public static void main(String[] args) {

Clock cp = new Clock();

cp.setVisible(true);

}

Clock() {

super("Java闹钟！");

setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);

setSize(550, 700);

setVisible(true);

Container contentPane = getContentPane();

jp2 = new JPanel();

jmb = new JMenuBar();

jm1 = new JMenu("背景颜色设置 ", true);

jmi1 = new JMenuItem("外圈颜色");

jmi1.addActionListener(this);

jmi1.setActionCommand("color1");

jm1.add(jmi1);

jmi2 = new JMenuItem("闹钟边线颜色");

jmi2.addActionListener(this);

jmi2.setActionCommand("color2");

jm1.add(jmi2);

jmi3=new JMenuItem("底盘颜色");

jmi3.addActionListener(this);

jmi3.setActionCommand("color3");

jm1.add(jmi3);

jmi4=new JMenuItem("系统时间背静颜色");

jmi4.addActionListener(this);

jmi4.setActionCommand("color4");

jm1.add(jmi4);

jmb.add(jm1);

jm2 = new JMenu("指针颜色设置 ", true);

jmi5 = new JMenuItem("秒针颜色");

jmi5.addActionListener(this);

jmi5.setActionCommand("color5");

jm2.add(jmi5);

jmi6 = new JMenuItem("分针颜色");

jmi6.addActionListener(this);

jmi6.setActionCommand("color6");

jm2.add(jmi6);

jmi7 = new JMenuItem("时针颜色");

jmi7.addActionListener(this);

jmi7.setActionCommand("color7");

jm2.add(jmi7);

jmb.add(jm2);

jm3 = new JMenu("闹铃声音设置 ", true);

jmi8 = new JMenuItem("响铃1");

jmi8.addActionListener(this);

jmi8.setActionCommand("ring1");

jm3.add(jmi8);

jmi9 = new JMenuItem("静音");

jmi9.addActionListener(this);

jmi9.setActionCommand("ring2");

jm3.add(jmi9);

jmb.add(jm3);

jm4 = new JMenu("帮助 ", true);

jmi10=new JMenuItem("使用说明");

jmi10.addActionListener(this);

jmi10.setActionCommand("help");

jm4.add(jmi10);

jmb.add(jm4);

jp2.add(jmb);

contentPane.add(jp2, BorderLayout.NORTH);

jp3 = new JPanel();

jl1 = new JLabel("闹铃时间");

jl1.setFont(new Font("楷体_GB2312", Font.BOLD, 18));

time = new JTextField("00:00", 5);

alarm = time.getText();

jb = new JButton("修改闹铃时间");

jb.addActionListener(this);

jb.setActionCommand("CC");

jp3.add(jl1);

jp3.add(time);

jp3.add(jb);

contentPane.add(jp3, BorderLayout.SOUTH);

ClockPanel clock = new ClockPanel();

contentPane.add(clock, BorderLayout.CENTER);

// 窗体添加事件监听，监听秒表的触发

ActionListener taskPerformer = new ActionListener() {

public void actionPerformed(ActionEvent evt) {

repaint();

}

};

new Timer(delay, taskPerformer).start();

}

/**

* br

* 方法说明：绘制图形

*/

Color C1 = Color.lightGray;// 外圈颜色

Color C2 = Color.black;// 边线颜色

Color C3 = Color.magenta;// 内盘颜色

Color C4 = Color.blue;// 背景颜色

Color C5 = Color.yellow;// 秒针颜色

Color C6 = Color.green;// 分针颜色

Color C7 = Color.red;//时针颜色

public class ClockPanel extends JPanel {

public void paint(Graphics g) {

h = getSize().height - 200;

// 绘制圆形

g.setColor(C1);

g.fillOval(L0 + 30, T0 + 30, h - 60, h - 60);

g.setColor(C2);

g.drawOval(L0 + 31, T0 + 31, h - 62, h - 62);

g.setColor(C3);

g.fillOval(L0 + 50, T0 + 50, h - 100, h - 100);

g.setColor(C2);

g.drawOval(L0 + 51, T0 + 51, h - 102, h - 102);

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;

g.drawString("指针式时钟", 215, 200);

// 获取时间

now = Calendar.getInstance();

hh = now.get(Calendar.HOUR_OF_DAY);// 小时

mm = now.get(Calendar.MINUTE);// 分钟

ss = now.get(Calendar.SECOND);// 秒

g.setColor(C4);

g.fillRect(5, 550, 150, 30);// 填充的矩形

g.setColor(C6);

if (hh 10)

st = "0" + hh;

else

st = "" + hh;

if (mm 10)

st = st + ":0" + mm;

else

st = st + ":" + mm;

if(alarm.equals(st))

{

if(toolkit!=null)

toolkit.beep();

else {}

}

if (ss 10)

st = st + ":0" + ss;

else

st = st + ":" + ss;

{

g.setFont(new Font("华文楷体", Font.BOLD, 16));

g.drawString("系统时间:" + st, 10, 570);

}

// 计算时间和图形的关系

sdo = 90 - ss * 6;

mdo = 90 - mm * 6;

hdo = 90 - hh * 30 - mm / 2;

// 擦除秒针

if (old_X 0) {

g.setColor(C3);

} else {

old_M = mdo;

old_H = hdo;

}

// 绘制秒针

g.setColor(C5);

x = (int) ((r - 26) * Math.cos(RAD * sdo) + x0);

y = (int) ((r - 26) * Math.sin(RAD * sdo) + y0) - 2 * T0;

g.drawLine(x0, y0, x, (h - y));

old_X = x;

old_Y = y;

// 擦除分针和时针

if (mdo != old_M) {

g.setColor(C3);

old_M = mdo;

}

if (hdo != old_H) {

g.setColor(C3);

old_H = hdo;

}

// 绘制分针

g.setColor(C6);

x = (int) ((r - 50) * Math.cos(RAD * mdo) + x0);

y = (int) ((r - 50) * Math.sin(RAD * mdo) + y0) - 2 * T0;

g.drawLine(x0, y0, x, (h - y));

// 绘制时针

g.setColor(C7);

x = (int) ((r - 90) * Math.cos(RAD * hdo) + x0);

y = (int) ((r - 90) * Math.sin(RAD * hdo) + y0) - 2 * T0;

g.drawLine(x0, y0, x, (h - y));

} // end paint

}

// 闹铃时间的判断及实现

// 闹铃声音的实现

public void actionPerformed(ActionEvent e) {

// JMenuItem m = (JMenuItem) e.getSource();

if (e.getActionCommand() == "CC") {

int newHou, newMin;

char c;

String getTime = JOptionPane.showInputDialog(this, "请输入闹铃时间格式如：", "00:00");

repaint();

//如果撤消设置时间，就什么打印null

if(getTime==null)

System.out.println(getTime);

// dispose();

judge: if (getTime != null) {

//打印输入的设置的时间

System.out.println(getTime);

// 判断输入的是不是5位字符

if (getTime.length() != 5) {

JOptionPane.showMessageDialog(time, "格式错误\n请按格式输入5位数字", "Error",

JOptionPane.ERROR_MESSAGE);

repaint();

break judge;

}

// 判断输入的是不是数字

for (int i = 0; i (getTime.length()); i++) {

c = getTime.charAt(i);

if (i == 2 !Character.isDigit(c))

continue;

// 判断当前字符,如果不是数字则跳出该事件

if (i != 2 !Character.isDigit(c)) {

JOptionPane.showMessageDialog(this, "格式错误\n请按格式输入5位数字",

"Error",JOptionPane.ERROR_MESSAGE);

repaint();

break judge;

}

}

char[] hour = { getTime.charAt(0), getTime.charAt(1) };

char[] minute = { getTime.charAt(3), getTime.charAt(4) };

newHou = Integer.parseInt(String.valueOf(hour));

newMin = Integer.parseInt(String.valueOf(minute));

if (newHou = 24 || newHou 0) {

JOptionPane.showMessageDialog(this, "格式错误\n小时应该是不小于0不大于23的正数",

"Error", JOptionPane.ERROR_MESSAGE);

repaint();

break judge;

}

if (newMin = 60 || newHou 0) {

JOptionPane.showMessageDialog(this, "格式错误\n分钟应该是小于60的正数", "Error",

JOptionPane.ERROR_MESSAGE);

repaint();

break judge;

}

new SetTime(newHou, newMin);

}

}

if (e.getActionCommand() == "ring1") {

toolkit=Toolkit.getDefaultToolkit();

}

if(e.getActionCommand() == "ring2"){

System.out.println("静音");

toolkit=null;

}

if (e.getActionCommand() == "color1") {

String color;

Color c;

System.out.println("color1");

color = JOptionPane.showInputDialog(this, "请输入喜欢的外圈颜色（0--255）", "128");

if (color == null) {

} else {

if (Integer.parseInt(color) 0

|| Integer.parseInt(color) 255)

JOptionPane.showInputDialog(this, "请输入喜欢的外圈颜色（0--255）", "128");

else {

c = new Color(Integer.parseInt(color));

C1 = c;

}

}

}

if(e.getActionCommand() == "color2"){

String color;

Color c;

System.out.println("color2");

color = JOptionPane.showInputDialog(this, "请输入喜欢的边线颜色（0--255）", "128");

if(color==null){}

else{if (Integer.parseInt(color) 0|| Integer.parseInt(color) 255)

JOptionPane.showInputDialog(this, "请输入喜欢的边线颜色（0--255）", "128");

else {

c = new Color(Integer.parseInt(color));

C2 = c;

}

}

}

if(e.getActionCommand() == "color3"){

String color;

Color c;

System.out.println("color3");

color = JOptionPane.showInputDialog(this, "请输入喜欢的内盘颜色（0--255）", "128");

if(color==null){}

else{if (Integer.parseInt(color) 0|| Integer.parseInt(color) 255)

JOptionPane.showInputDialog(this, "请输入喜欢的内盘颜色（0--255）", "128");

else {

c = new Color(Integer.parseInt(color));

C3 = c;

}

}

}

if(e.getActionCommand() == "color4"){

String color;

Color c;

System.out.println("color4");

color = JOptionPane.showInputDialog(this, "请输入喜欢的背景颜色（0--255）", "128");

if(color==null){}

else{if (Integer.parseInt(color) 0|| Integer.parseInt(color) 255)

JOptionPane.showInputDialog(this, "请输入喜欢的背景颜色（0--255）", "128");

else {

c = new Color(Integer.parseInt(color));

C4 = c;

}

}

}

if(e.getActionCommand() == "color5"){

String color;

Color c;

System.out.println("color5");

color = JOptionPane.showInputDialog(this, "请输入喜欢的秒针颜色（0--255）", "128");

if(color==null){}

else{if (Integer.parseInt(color) 0|| Integer.parseInt(color) 255)

JOptionPane.showInputDialog(this, "请输入喜欢的秒针颜色（0--255）", "128");

else {

c = new Color(Integer.parseInt(color));

C5 = c;

}

}

}

if(e.getActionCommand() == "color6"){

String color;

Color c;

System.out.println("color6");

color = JOptionPane.showInputDialog(this, "请输入喜欢的分针颜色（0--255）", "128");

if(color==null){}

else{if (Integer.parseInt(color) 0|| Integer.parseInt(color) 255)

JOptionPane.showInputDialog(this, "请输入喜欢的分针颜色（0--255）", "128");

else {

c = new Color(Integer.parseInt(color));

C6 = c;

}

}

}

if(e.getActionCommand() == "color7"){

String color;

Color c;

System.out.println("color7");

color = JOptionPane.showInputDialog(this, "请输入喜欢的时针颜色（0--255）", "128");

if(color==null){}

else{if (Integer.parseInt(color) 0|| Integer.parseInt(color) 255)

JOptionPane.showInputDialog(this, "请输入喜欢的时针颜色（0--255）", "128");

else {

c = new Color(Integer.parseInt(color));

C7 = c;

}

}

}

if(e.getActionCommand() == "help"){

String help;

help = JOptionPane.showInputDialog(this, "输入quit退出该闹钟的使用", "这是运行在Java中的指针式时钟");

if(help.equals("quit"))

dispose();

else {}

// timer.restart();

}

}

class SetTime {

String Hour;

String Minute;

public SetTime() { }

public SetTime(int hour, int minute) {

// 当时间参数小于10的时候在前面添加字符0

if (hour 10) {

Hour = "0" + String.valueOf(hour);

} else {

Hour = "" + String.valueOf(hour);

}

if (minute 10) {

Minute = "0" + String.valueOf(minute);

} else {

Minute = "" + String.valueOf(minute);

}

alarm = Hour + ":" + Minute;

time.setText(alarm);

repaint();

}

}

}

相关问答

Q1: JAVA时钟代码解释

lz这个代码有什么看不懂的 如果这个代码看不懂的话 建议你从基础的开始学习吧

首先可以看到extends JFrame implements ActionListener 关于ActionListener 接口和JFrame 类lz有必要去看看 加入api慢慢研究下吧

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;

这些东西我也看不懂 因为你的代码不完整

final double RAD=Math.PI/180; 这个应该是算一个弧度吧

super("made by mcj and wdh"); 这句无意义 是父类的代码

setDefaultCloseOperation(3);这个方法是什么？？代码不完整

setSize(300,300);设置窗体大小

setBackground(Color.white);设置背景色

setLocation(300,150); 定位

setResizable(false);不调整大小

setVisible(true);可见

后面的就没有代码了

Q2: 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();

}

}

Q3: 用java编写一个时钟的程序

java时钟源代码我给java时钟源代码你做java时钟源代码了一下:(第二个功能你自己加吧)

import javax.swing.*;

import java.awt.*;

import java.awt.event.*;

import java.util.Date;

import java.text.*;

public class TestTimer extends JFrame implements ActionListener{

Timer timer;

JLabel display = new JLabel();

SimpleDateFormat dateFmt = new SimpleDateFormat("hh:mm:ss");

TestTimer(){

getContentPane().setLayout(new FlowLayout());

timer = new Timer(1000,this);

timer.setRepeats(true);

timer.setInitialDelay(1000);

timer.start();

getContentPane().add(display);

setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

setSize(200,100);

setVisible(true);

} // TestTimer

public void actionPerformed(ActionEvent e){

if(e.getSource() == timer){

display.setText(dateFmt.format(new Date()));

}

} // actionPerformed

public static void main(String[] args){

TestTimer tt = new TestTimer();

}

} // TestTimer

Q4: 电脑桌面罗盘时钟源代码怎么写

import java.awt.*；

导入Java.awt.event.*；

import javax.swing.*；

import java.lang.*；

import java.util.*；

publicclassrunabletestextendsjframeimplementsrunnable {

JPanel pnlMain； //定义变量

Jlabel Lbl时间； //定义变量

thread thd时间； //定义变量

日期数据显示

Q5: java编程利用按钮实现时钟的停止和开始功能（原代码）

如下：

import java.awt.*;

import java.awt.event.*;

import javax.swing.JButton;

import javax.swing.JFrame;

import javax.swing.JPanel;

import javax.swing.Timer;

import java.awt.geom.*;

import java.util.*;

class Clock 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];

Clock()

{ 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;i59;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;i60;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;i60;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);

     Clock clock=new Clock();

     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();

   }

}

运行截图：

有问题就追问，满意请采纳。

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