javaÖÐʹ´°¿Ú¾ÓÖÐÏÔʾ
Èç¹ûҪʹÖ÷´°¿Ú ¾ÓÖÐÒ»°ãʹÓÃÏÂÃæµÄ·½·¨£º
import javax.swing.*;
import java.awt.*;
public class ToCenter
{
public ToCenter(JFrame frame)
{
//---------------------------ÉèÖô°¿Ú¾ÓÖÐ----------------------------------------------------------
int windowWidth = frame.getWidth(); //»ñµÃ´°¿Ú¿í
int windowHeight = frame.getHeight(); //»ñµÃ´°¿Ú¸ß
Toolkit kit = Toolkit.getDefaultToolkit(); //¶¨Ò幤¾ß°ü
Dimension screenSize = kit.getScreenSize(); //»ñÈ¡ÆÁÄ»µÄ³ß´ç
int screenWidth = screenSize.width; //»ñÈ¡ÆÁÄ»µÄ¿í
int screenHeight = screenSize.height; //»ñÈ¡ÆÁÄ»µÄ¸ß
frame.setLocation(screenWidth/2-windowWidth/2, screenHeight/2-windowHeight/2);//ÉèÖô°¿Ú¾ÓÖÐÏÔʾ
//------------------------------------------------------------------------------------------------
}
}
µ±È»ÄãÒ²¿ÉÒÔÈÃÒ»¸öWindow¶ÔÏó¡¢JWindow¶ÔÏó»òFrame¶ÔÏó¾ÓÖУ¬ÒÔÏÂÊǸüͨÓõķ½·¨£º
Toolkit kit = Toolkit.getDefaultToolkit();&
Ïà¹ØÎĵµ£º
ת×Ô£ºIBM¼¼ÊõÉçÇø2009 Java ×¨Çø×îÊÜ»¶ÓÄÚÈÝ
×îÊÜ»¶ÓµÄÈÈÃÅÖ÷Ìâ
Web ¿ª·¢
2009
Ä꣬Web 2.0 Èȳ±´Ùʹ Web ¿ª·¢¼ÌÐø³ÉΪµ±Ç°×îÈÈÃŵÄÖ÷Ìâ¡£ÆäÖУ¬»ùÓÚ¶¯Ì¬ÓïÑÔ Goovy µÄÐÂÐË Web ¿ª·¢¿ò¼Ü Grails
³ÉΪÁ˱¸ÊÜÖõÄ¿µÄÐÂÐÇ¡£³ý´ËÖ®Í⣬Ðí¶à´«Í³µÄ»ùÓÚ Java ÓïÑ﵀ Web ¿ª·¢¿ò¼Ü£¬Èç Struts¡¢JSF¡¢GWT
µÈ£¬Ò²¶¼ÈÚÈë ......
Java ÖÐÄÚ²¿¶¯Ì¬Àà(ûÓÐstatic)¹Ø¼ü×ÖºÍÄÚ²¿¾²Ì¬ÀàµÄ¾ÍÔÚÓÚÄÚ²¿¶¯Ì¬À಻Äܶ¨Ò徲̬±äÁ¿»òÊǾ²Ì¬·½·¨,Èç¹ûÒªÔÚÄÚ²¿ÀàÖÐʹÓþ²Ì¬³ÉÔ±,±ØÐ뽫ÀàÉùÃ÷Ϊ¾²Ì¬Àà. ÄÚ²¿ÀàÖеľ²Ì¬·½·¨¿ÉÒÔ·ÃÎÊÍⲿÀàµÄ¾²Ì¬·½·¨ºÍ±¾ÀàÖеľ²Ì¬·½·¨»ò³ÉÔ±, ·Ç¾²Ì¬·½·¨¿ÉÒÔ·ÃÎÊÆäËûËùÓеķ½·¨»ò³ÉÔ± ......
<%@ page import="java.lang.*" %>
ÉáµôСÊýÈ¡Õû:Math.floor(2.0)=2
ÉáµôСÊýÈ¡Õû:Math.floor(2.1)=2
ÉáµôСÊýÈ¡Õû:Math.floor(2.5)=2
ÉáµôСÊýÈ¡Õû:Math.floor(2.9)=2
ÉáµôСÊýÈ¡Õû:Math.floor(-2.0)=-2
ÉáµôСÊýÈ¡Õû:Math.floor(-2.1)=-3
ÉáµôСÊýÈ¡Õû:Math.floor(-2.5)=-3
ÉáµôСÊýÈ¡Õû:Math.floor(-2.9)= ......
ÏÖ½×¶ÎJAVA²Ù×÷ExcelµÄJARÖ÷ÒªÓÐapache µÄ POI¼° JXL.
ÒòΪÏÖÔÚµÄeclipse²Ù×÷excelÓõIJå¼þΪjxl£¬ËùÒÔÔÚÏîÄ¿ÖоÍʹÓÃÁËjxl£®
ÏëÏëÁ½Õß¶¼²î²»ÁËÌ«¶à£®
´Ë¼òµ¥ÏµÁÐΪÁ½¸ö²¿·Ö£¬Ò»ÊÇAPIϵÁУ¨ÔÙ¹ÙÍøhttp://www.andykhan.com/jexcelapi/download.html¿ÉÒÔÖ±½ÓÏÂÔØ£©£¬
ÁíÒ»²¿·ÖÔòÊÇÓ¦ÓÃϵÁУ®
ÔÚÕâÀïÏÈÕÒÁ˸öÀý×Ó¸ø´ó¼Ò£ ......
Servlet/JSP¼¼ÊõºÍASP¡¢PHPµÈÏà±È£¬ÓÉÓÚÆä¶àÏß³ÌÔËÐжø¾ßÓкܸߵÄÖ´ÐÐЧÂÊ¡£ÓÉÓÚServlet/JSPĬÈÏÊÇÒÔ¶àÏß³ÌģʽִÐеģ¬ËùÒÔ£¬ÔÚ±àд´úÂëʱÐèÒª·Ç³£Ï¸Öµؿ¼ÂǶàÏ̵߳ݲȫÐÔÎÊÌ⡣Ȼ¶ø£¬ºÜ¶àÈ˱àдServlet/JSP³ÌÐòʱ²¢Ã»ÓÐ×¢Òâµ½¶àḬ̈߳²È«ÐÔµÄÎÊÌ⣬ÕâÍùÍùÔì³É±àдµÄ³ÌÐòÔÚÉÙÁ¿Óû§·ÃÎÊʱûÓÐÈκÎÎÊÌ⣬¶øÔÚ²¢·¢Óû§ÉÏÉýµ ......