荔园在线
荔园之美，在春之萌芽，在夏之绽放，在秋之收获，在冬之沉淀
[回到开始]
[上一篇][下一篇]
发信人: ant (江南笑笑生), 信区: Homepage
标 题: 网页时钟代码
发信站: BBS 荔园晨风站 (Sat May 8 08:12:35 1999), 转信
转信站: argo (local)
import java.util.*;
import java.awt.*;
import java.applet.*;
// import java.io.*;
public class Clock2 extends Applet implements Runnable {
// Globals
Thread timer = null; // The timer thread
Color foregroundCol; // The foreground color
Color DefaultforegroundCol = new Color(0, 0, 0); // The default Foreground (B
Color backgroundCol; // The background color
Color DefaultbackgroundCol = new Color(192, 192, 192); // 'Browser Gray'
Date dummy = new Date(); // The first date to format the output from
Font showfont; // The font used for display
String lastdate = dummy.toLocaleString(); // The date to erase
String DateFmt = "%a, %B %e %T";
String[] weekDays = new String[7];
String[] months = new String[12];
/**
Get a color parameter from the html page (<param ....>)
If the parameter is not given in the <applet> container,
return the default color.
*/
private int getColorFromParam(String parmName, Color defaultCol)
{
Integer IntColor;
String parmValue = this.getParameter(parmName); // Get the value
if (parmValue != null) // Was the <param name="[parmName]" ...> there?
{
Integer intColor = Integer.valueOf(parmValue, 16);
return(intColor.intValue()); // return the 32-bit color value
}
return (defaultCol.getRGB()); // return the default color value
}
/**
Prepare everything, so we will run correctly.
This includes getting and setting the parameters
obtained from the <param ...> tags.
*/
public void init()
{
String FontFamily = "TimesRoman"; // The default Font Family
int FontSize = 12; // The default Font Size
int FontWeight = Font.PLAIN; // The default Font Weight
// Set up the colors to use (FG & BG)
backgroundCol = new Color(this.getColorFromParam("BGCol", DefaultbackgroundCo
);
foregroundCol = new Color(this.getColorFromParam("FGCol", DefaultforegroundCo
);
this.setBackground(backgroundCol); // Set the background Color
// If the "FontFamily" param is present
if (this.getParameter("FontFamily") != null)
{
FontFamily = this.getParameter("FontFamily"); // Change the Font Family
}
// If the "FontSize" param is present
if (this.getParameter("FontSize") != null)
{
// Convert the value string into an Integer
Integer IntFontSize = new Integer(this.getParameter("FontSize"));
// and then to an int
FontSize = IntFontSize.intValue();
}
// If the "FontWeight" param is present
if (this.getParameter("FontWeight") != null)
{
String SFontWeight = new String(this.getParameter("FontWeight"));
SFontWeight = SFontWeight.toLowerCase(); // convert to lowercase
// Set the appropriate values. NOTE: You can't or values together...
if (SFontWeight.equals("bold")) { FontWeight = Font.BOLD; }
if (SFontWeight.equals("italic")) { FontWeight = Font.ITALIC; }
if (SFontWeight.equals("plain")) { FontWeight = Font.PLAIN; }
}
showfont = new Font(FontFamily, FontWeight, FontSize); // Create the desired
nt.
// if the "DateFmt" param is present
if (this.getParameter("DateFmt") != null)
{
DateFmt = this.getParameter("DateFmt");
}
// Initialize the Formatting Arrays for date display
// Days (Abbreviated is obtained by x.substring(0,3))
weekDays[0] = new String("Sunday");
weekDays[1] = new String("Monday");
weekDays[2] = new String("Tuesday");
weekDays[3] = new String("Wednesday");
weekDays[4] = new String("Thursday");
weekDays[5] = new String("Friday");
weekDays[6] = new String("Saturday");
// Months (Abbreviated is obtained by x.substring(0,3))
months[0] = new String("January");
months[1] = new String("February");
months[2] = new String("March");
months[3] = new String("April");
months[4] = new String("May");
months[5] = new String("June");
months[6] = new String("July");
months[7] = new String("August");
months[8] = new String("September");
months[9] = new String("October");
months[10] = new String("November");
months[11] = new String("December");
}
// Left Pad a number
private String padElement(int expr, char padChar)
{
String result = "";
// I'm just padding 2 digit numbers
if (expr < 10) result = result.concat(String.valueOf(padChar));
result = result.concat(String.valueOf(expr));
return(result);
}
{
if (fmt.charAt(i) == '%') // We've hit a formatting command...
{
i++; // Move past the '%' sign
if (fmt.length() <= i) // If the last char of the format is a lone '%'
{
formattedDate = formattedDate.concat("?");
continue; // Forget the rest of the loop
}
// Figure out the format.
switch (fmt.charAt(i))
{
case 'a': // Short Weekday name
formattedDate = formattedDate.concat(weekDays[weekDay].substring(0,3));
break;
case 'A': // Long Weekday name
formattedDate = formattedDate.concat(weekDays[weekDay]);
break;
case 'b': // Short Month name
case 'h': // It's alias
formattedDate = formattedDate.concat(months[month].substring(0,3));
break;
case 'B': // Long Month name
formattedDate = formattedDate.concat(months[month]);
break;
case 'c': // The locale time/date string
formattedDate = formattedDate.concat(d.toLocaleString());
break;
case 'C': // The default time/date string
formattedDate = formattedDate.concat(d.toString());
break;
case 'd': // 2 digit month number
formattedDate = formattedDate.concat(padElement(monthDay, '0'));
break;
case 'D': // Shortcut for %m/%d/%y
formattedDate = formattedDate.concat(padElement(month + 1, '0'));
formattedDate = formattedDate.concat(String.valueOf('/'));
formattedDate = formattedDate.concat(padElement(monthDay, '0'));
formattedDate = formattedDate.concat(String.valueOf('/'));
formattedDate = formattedDate.concat(padElement(year, '0'));
break;
case 'e': // Month Number
formattedDate = formattedDate.concat(padElement(monthDay, ' '));
break;
case 'H': // Hour -- 00 to 23
formattedDate = formattedDate.concat(padElement(hour, '0'));
break;
case 'I': // Hour -- 01 to 12
formattedDate = formattedDate.concat(padElement(US_Hour, '0'));
break;
// case 'j': // day of year 001 to 366 ; left out
// (java doesn't have the d.getYearDay() function.
case 'm': // Month numbers -- 01 to 12
formattedDate = formattedDate.concat(padElement(month + 1, '0'));
break;
case 'M': // Minutes -- 00 to 59
formattedDate = formattedDate.concat(padElement(minute, '0'));
break;
// case 'n': // Insert a newline; I guess drawString doesn't do \x stuff
// formattedDate = formattedDate.concat("\n");
// break;
case 'p': // AM or PM
formattedDate = formattedDate.concat(String.valueOf((hour < 12 ? "AM" :
PM")));
break;
case 'r': // Shortcut for %I:%M:%S %p
formattedDate = formattedDate.concat(padElement(US_Hour, '0'));
formattedDate = formattedDate.concat(String.valueOf(':'));
formattedDate = formattedDate.concat(padElement(minute, '0'));
formattedDate = formattedDate.concat(String.valueOf(':'));
formattedDate = formattedDate.concat(padElement(second, '0'));
formattedDate = formattedDate.concat(String.valueOf(' '));
formattedDate = formattedDate.concat(String.valueOf((hour < 12 ? "AM" :
PM")));
break;
case 'R': // Shortcut for %H:%M
formattedDate = formattedDate.concat(padElement(hour, '0'));
formattedDate = formattedDate.concat(String.valueOf(':'));
formattedDate = formattedDate.concat(padElement(minute, '0'));
break;
case 'S': // Second -- 00 to 61 (leap seconds)
formattedDate = formattedDate.concat(padElement(second, '0'));
break;
// case 't': // Insert a tab character; It seems drawString doesn't do \x
tuff
// formattedDate = formattedDate.concat("\t");
// break;
case 'T': // Shortcut for %H:%M:%S
formattedDate = formattedDate.concat(padElement(year, '0'));
break;
case 'Y': // long year (1996)
formattedDate = formattedDate.concat(padElement(longYear, '0'));
break;
// 'Z' not supported
case '%': // Just in case you want to show the '%' sign
formattedDate = formattedDate.concat("%");
break;
default:
formattedDate = formattedDate.concat("??");
break;
}
}
else // A regular character
{
formattedDate = formattedDate.concat(String.valueOf(fmt.charAt(i)));
}
} // end for
return(formattedDate);
}
/**
Paint is the main part of the program
First get the current date, and set the correct font;
then erase the old time/date, and draw the new one
*/
public void paint(Graphics g)
{
String today;
Date dat = new Date();
g.setFont(showfont);
today = formatDate(DateFmt, dat);
// today = dat.toLocaleString();
// Clean up the old text
g.setColor(backgroundCol);
g.drawString(lastdate, 5, 20);
// Draw the new text
g.setColor(foregroundCol);
g.drawString(today, 5, 20);
// Get ready to erase the old text.
lastdate = today;
}
// start the thread
public void start()
{
if(timer == null)
{
timer = new Thread(this);
timer.start();
}
}
/**
When the timer Thread is set to null, the applet will stop;
see start()
*/
public void stop()
{
timer = null;
}
public void run()
{
// Sleep in the timer thread...
while (timer != null) {
try {timer.sleep(100);} catch (InterruptedException e){}
repaint(); // and do the redraw.
}
******************************************************************
下面是网页
******************************************************************
<html>
<head>
<meta name="GENERATOR" content="Microsoft FrontPage 3.0">
<title>clock</title>
</head>
<body>
<h2 align="center"><strong>Clock.class 使用方法</strong></h2>
<h3>FontFamily</h3>
<p><b>Syntax</b>: <code><PARAM NAME="FontFamily"
VALUE="FamilyName"></code><br>
where <code>FamilyName</code> is the name of the Font you want to use. Currentl
the
fonts I can get to work are:
<ul>
<li>Courier </li>
<li>Helvetica </li>
<li>TimesRoman </li>
</ul>
<p><b>Default:</b> TimesRoman</p>
<h3>FontSize</h3>
<p><b>Syntax</b>: <code><PARAM NAME="FontSize" VALUE="Size&qu
;></code><br>
where <code>Size</code> is the point size you want the font to display in.</p>
<p><b>Default</b>: 12</p>
<h3>FontWeight</h3>
<p><b>Syntax</b>: <code><PARAM NAME="FontWeight" VALUE="Weigh
quot;></code><br>
where <code>Weight</code> is the weight to apply to the Font. Valid values are:
<ul>
<li>plain </li>
<li>bold </li>
<li>italic </li>
</ul>
<p>It is not possible to combine the weights.</p>
<p><b>Default</b>: plain </p>
<h3>BGCol</h3>
<p><b>Syntax</b>: <code><PARAM NAME="BGCol" VALUE="Color"
gt;</code><br>
where Color is the hexadecimal representation of the background color you wish
use.</p>
<p><b>Format</b>: RRGGBB</p>
<p><b>Default</b>: 'Netscape Gray' (c0c0c0)</p>
<h3>FGCol</h3>
<p><b>Syntax</b>: <code><PARAM NAME="FGCol" VALUE="Color"
gt;</code><br>
where Color is the hexadecimal representation of the foreground (text) color yo
wish to
use.</p>
<p><b>Format</b>: RRGGBB</p>
<p><b>Default</b>: Black (000000)</p>
<h3>DateFmt</h3>
<p><b>Syntax</b>: <code><PARAM NAME="DateFmt" VALUE="Format&q
t;></code><br>
where <code>Format</code> is the format of the string you want to display.</p>
<p>The string can contain text, as well as formatting fields. Formatting fields
egin with
the '%' character. Example: <code>%H</code> will display the current hour.
<ul>
<li><b><code>a</code></b> abbreviated weekday name (3 characters) </li>
<li><b><code>A</code></b> full weekday name </li>
<li><b><code>b</code></b> abbreviated month name (3 characters) </li>
<li><b><code>B</code></b> full month name </li>
<li><b><code>c</code></b> locale's appropriate date and time representation <
i>
<li><b><code>C</code></b> default date and time format </li>
<li><b><code>d</code></b> day of month - 01 to 31 </li>
<li><b><code>D</code></b> date as %m/%d/%y </li>
<li><b><code>e</code></b> day of month - 1 to 31 (single digits are preceded
a blank) </li>
<li><b><code>h</code></b> abbreviated month name (alias for %b) </li>
<li><b><code>H</code></b> hour - 00 to 23 </li>
<li><b><code>I</code></b> hour - 01 to 12 </li>
<li><b><code>m</code></b> month of year - 01 to 12 </li>
<li><b><code>M</code></b> minute - 00 to 59 </li>
<li><b><code>p</code></b> string containing ante-meridiem or post-meridiem in
cator (AM or
PM) </li>
<li><b><code>r</code></b> time as %I:%M:%S %p </li>
<li><b><code>R</code></b> time as %H:%M </li>
<li><b><code>S</code></b> second - 00 to 61, allows for leap seconds </li>
<li><b><code>T</code></b> time as %H:%M:%S </li>
<li><b><code>w</code></b> day of week - Sunday = 0 </li>
<li><b><code>y</code></b> year within century - 00 to 99 </li>
<li><b><code>Y</code></b> year as ccyy (4 digits) </li>
<li><b><code>%</code></b> to display the '%' character in the display </li>
</ul>
<p>The following conversions from date(1) are not supported:
<ul>
<li><b><code>j</code></b> </li>
<li><b><code>u</code></b> </li>
<li><b><code>W</code></b> </li>
<li><b><code>n</code></b> </li>
<li><b><code>t</code></b> </li>
</ul>
<p><b>Default</b>: <code>"%a, %B %e %T"</code></p>
</body>
</html>
--
--
少年心事当拿云，谁念幽寒坐呜呃！
※ 来源:．BBS 荔园晨风站 bbs.szu.edu.cn．[FROM: 192.168.1.235]
[回到开始]
[上一篇][下一篇]
荔园在线首页 友情链接：深圳大学 深大招生 荔园晨风BBS S-Term软件 网络书店