JAVA畫(huà)時(shí)鐘代碼

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時(shí)鐘");

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;

//創(chuàng)建一個(gè)監(jiān)聽(tīng)事件

setVisible(true);

ActionListener?drawClock?=?new?ActionListener(){

public?void?actionPerformed(ActionEvent?evt){

repaint();

}

};

//創(chuàng)建一個(gè)時(shí)間計(jì)數(shù)器，每一秒觸發(fā)一次

new?Timer(delay,?drawClock).start();

}

java.text.SimpleDateFormat?fmTime?=?new?java.text.SimpleDateFormat("HH:mm:ss");

//繪制圖形

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);

//畫(huà)圓

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;

//繪制時(shí)鐘上的12個(gè)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;

}

//獲得現(xiàn)在的時(shí)間

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());

//在窗體上顯示時(shí)間

g.setColor(Color.pink);

g.fillRect(L,?T,?50,?28);

g.setColor(Color.blue);

g.drawString(st,L+2,T+26);

//計(jì)算時(shí)間與度數(shù)的關(guān)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));

//擦除秒針

//if(olds_x??0){

//????g.setColor(getBackground());

//????//?g.setColor(Color.gray);

//????g.drawLine(x0,?y0,?olds_x,?h-olds_y);?//?(?)

//}

//繪制秒針

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));

//擦除分針

//if(old_m!=mm){

//????g.setColor(getBackground());

//????g.drawLine(x0,y0,oldm_x,h-oldm_y);

//}

//繪制分針

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));

//擦除時(shí)針

//if(old_h!=hh){

//????g.setColor(getBackground());

//????g.drawLine(x0,y0,oldh_x,h-oldh_y);

//}

//繪制時(shí)針

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

怎么用java編寫(xiě)時(shí)鐘呀？

import

java.util.*;

import

java.awt.*;

import

java.applet.*;

//impelements

Runnable

是線(xiàn)程程序的接口

public

class

Clock

extends

Applet

implements

Runnable

{

Thread

timer

=

null;

//

定義線(xiàn)程實(shí)體timer

int

xcenter

=

400,

ycenter

=

50;

int

Radius

=

ycenter

-

5;

public

void

init()

{

resize(400,

125);//

設(shè)置時(shí)鐘程序的窗口大小

setBackground(Color.white);//

設(shè)置小應(yīng)用程序的背景色

}

public

void

paint(Graphics

g)

{

int

xh,

yh,

xm,

ym,

xs,

ys,

s,

m,

h;

String

today;

Date

dat

=

new

Date();

//

定義時(shí)間類(lèi)dat

s

=

dat.getSeconds();

//

獲得時(shí)間秒

m

=

dat.getMinutes();

//

獲得時(shí)間分

h

=

dat.getHours();

today

=

dat.toLocaleString();

//

獲得字符串時(shí)間格式

g.clearRect(0,

0,

size().width,

size().height);

//

消除小應(yīng)用程序

xcenter

=

xcenter

-

1;

//

向左移動(dòng)一個(gè)像素點(diǎn)

if

(xcenter

-50)

xcenter

=

400;

//

如果xcenter小于-50，則回到初始位置

//

計(jì)算秒的坐標(biāo)

xs

=

(int)

(Math.cos(s

*

3.14f

/

30

-

3.14f

/

2)

*

(Radius

-

5)

+

xcenter);

ys

=

(int)

(Math.sin(s

*

3.14f

/

30

-

3.14f

/

2)

*

(Radius

-

5)

+

ycenter);

//

計(jì)算分鐘的坐標(biāo)

xm

=

(int)

(Math.cos(m

*

3.14f

/

30

-

3.14f

/

2)

*

(Radius

-

10)

+

xcenter);

ym

=

(int)

(Math.sin(m

*

3.14f

/

30

-

3.14f

/

2)

*

(Radius

-

10)

+

ycenter);

//

計(jì)算小時(shí)的坐標(biāo)

xh

=

(int)

(Math.cos((h

*

30

+

m

/

2)

*

3.14f

/

180

-

3.14f

/

2)

*

(Radius

-

20)

+

xcenter);

yh

=

(int)

(Math.sin((h

*

30

+

m

/

2)

*

3.14f

/

180

-

3.14f

/

2)

*

(Radius

-

20)

+

ycenter);

g.setColor(Color.darkGray);

//

設(shè)置顏色

g.drawString("9",

xcenter

-

(Radius

-

5),

ycenter

+

3);

//

顯示時(shí)鐘上的數(shù)字‘9’

g.drawString("3",

xcenter

+

(Radius

-

10),

ycenter

+

3);

//

顯示時(shí)鐘上的數(shù)字‘3’

g.drawString("12",

xcenter

-

5,

ycenter

-

(Radius

-

13));

//

顯示時(shí)鐘上的數(shù)字'12'

g.drawString("6",

xcenter

-

3,

ycenter

+

(Radius

-

10));

//

顯示時(shí)鐘上的數(shù)字'6'

g.drawString(today,

0,

125);

//

顯示字符串時(shí)鐘

g.drawLine(xcenter,

ycenter,

xs,

ys);

//

畫(huà)秒針

g.setColor(Color.blue);

//

設(shè)置顏色

g.drawArc(xcenter

-

Radius,

ycenter

-

Radius,

2

*

Radius,

2

*

Radius,

0,

360);

//

畫(huà)鐘

g.drawLine(xcenter,

ycenter

-

1,

xm,

ym);

//

畫(huà)分針

g.drawLine(xcenter

-

1,

ycenter,

xm,

ym);

//

畫(huà)分針

g.drawLine(xcenter,

ycenter

-

1,

xh,

yh);

//

畫(huà)時(shí)針

g.drawLine(xcenter

-

1,

ycenter,

xh,

yh);

//

畫(huà)時(shí)針

}

public

void

start()

{

if

(timer

==

null)

{

timer

=

new

Thread(this);

//

生成Thread(多線(xiàn)程程序)的對(duì)象實(shí)體

timer.start();

//

啟動(dòng)生成的線(xiàn)程

}

}

public

void

stop()

{

timer.stop();

//

停止線(xiàn)程的工作

timer

=

null;

//

放掉Thread對(duì)象

}

public

void

run()

//

改方法用來(lái)定義線(xiàn)程體，一旦線(xiàn)程被啟動(dòng)執(zhí)行，就開(kāi)始執(zhí)行這個(gè)方法

{

while

(timer

!=

null)

{

try

{

Thread.sleep(150);

//

使當(dāng)前正在執(zhí)行的線(xiàn)程進(jìn)入睡眠時(shí)間由參數(shù)millis確定，

//

單位時(shí)間是毫秒，當(dāng)這個(gè)時(shí)間過(guò)去，線(xiàn)程即可運(yùn)行的

while

(timer

!=

null)

{

try

{

Thread.sleep(150);//

使用當(dāng)前正在執(zhí)行的線(xiàn)程進(jìn)入睡眠時(shí)間由參數(shù)

//

millis確定,單位是毫秒，當(dāng)這個(gè)時(shí)間過(guò)去，線(xiàn)程即為可運(yùn)行的

}

catch

(InterruptedException

e)

{

}

repaint();

//

repaint所做的事其實(shí)是去調(diào)用方法uadate重畫(huà)效應(yīng)用程序

}

timer

=

null;

}

catch

(InterruptedException

e)

{

}

}

}

//

所做的工作是先將整個(gè)效應(yīng)用程序區(qū)域清除，再去調(diào)用paint，完成重畫(huà)的動(dòng)作

public

void

update(Graphics

g)

{

paint(g);

}

}

寫(xiě)一個(gè)時(shí)鐘的java類(lèi)

public?class?A?{

public?static?void?main(String[]?args)?{

Clock?clock?=?new?Clock(13,?20,?38);

System.out.print(clock);

}

}

class?Clock?{

private?int?hour;

private?int?minute;

private?int?second;

public?Clock(int?hour,?int?minute,?int?second)?{

super();

this.hour?=?hour;

this.minute?=?minute;

this.second?=?second;

}

public?int?getHour()?{

return?hour;

}

public?void?setHour(int?hour)?{

this.hour?=?hour;

}

public?int?getMinute()?{

return?minute;

}

public?void?setMinute(int?minute)?{

this.minute?=?minute;

}

public?int?getSecond()?{

return?second;

}

public?void?setSecond(int?second)?{

this.second?=?second;

}

@Override

public?String?toString()?{

return?"現(xiàn)在時(shí)間是:"?+?hour?+?"時(shí)"?+?minute?+?"分"?+?second?+?"秒.";

}

}

怎樣用java 程序?qū)懸粋€(gè)時(shí)鐘程序

面向?qū)ο笏枷雽?xiě)成：

下面是一個(gè)顯示器類(lèi)

public?class?Display?{

private?int?value;//現(xiàn)在的值

private?int?limit;//上限值

Display(?int?limit)?{

this.limit?=?limit;

}

public?void?increase()?{

value++;

if(value?==?limit)?{

value?=?0;

}

}

public?int?getValue()?{

return?value;

}

public?static?void?main(String[]?args)?{

Display?d?=?new?Display(24);

for(;;)?{

d.increase();

System.out.println(d.getValue());

}

}

}

下面創(chuàng)建一個(gè)時(shí)鐘對(duì)象：

public?class?Clock?{

private?Display?h?=?new?Display(24);

private?Display?min?=?new?Display(60);

private?Display?s?=?new?Display(60);

public?void?start?()?{

for(;;)?{

s.increase();

if(s.getValue()?==?0){//如果分重置，小時(shí)+1

min.increase();

if(min.getValue()?==?0){//如果分重置，小時(shí)+1

h.increase();

}

}

System.out.printf("%02d:%02d:%02d\n",h.getValue(),?min.getValue(),s.getValue());//格式輸出

}

}

public?static?void?main(String[]?args)?{

Clock?clock?=?new?Clock();

clock.start();

}

用java編寫(xiě)一個(gè)時(shí)鐘的程序

我給你做了一下:(第二個(gè)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

如何用java做這樣的時(shí)鐘

class Clock{

private int hourse;

private int minute;

private int second;

public Clock(){

this.hourse=0;

this.minute=0;

this.second=0;

}

public void incSecond(){

this.second+=1;

}

public void toTime(){

if(this.hourse24){this.hourse=0;}

if(this.minute60){this.hourse+=1;this.minute-=60;}

if(this.second60){this.minute+=1;this.second-=60;}

System.out.printf(hourse+":"+minute+":"+second);

}

public void setHourse(int hourse) {

this.hourse = hourse;

}

public void setMinute(int minute) {

this.minute = minute;

}

public void setSecond(int second) {

this.second = second;

}

}

public class test {

public static void main(String[] args) {

Clock c=new Clock();

c.setMinute(66);//測(cè)試數(shù)據(jù)

c.setSecond(61);

c.toTime();//輸出1：7：1

}

}

基本功能實(shí)現(xiàn)。

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