Ò׽ؽØÍ¼Èí¼þ¡¢µ¥Îļþ¡¢Ãâ°²×°¡¢´¿ÂÌÉ«¡¢½ö160KB

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

javaµÄ»ù±¾Êý¾ÝÀàÐÍÊÇÎÞ·ûºÅµÄ

ÕæÊDzÑÀ¢°¡, ѧÁËÔõô¾Ã java, ÏÖÔÚ²ÅÖªµÀ java µÄ»ù±¾Êý¾ÝÀàÐÍÊDz»´æÔÚÓзûºÅºÍÎÞ·ûºÅÕâÖÖ¶«Î÷µÄ. ƽʱ¶¼Ã»Óиã×Ö½ÚºÍλ֮ÀàµÄÔËËã, ËùÒÔµ¹ÊÇûÓÐ×¢Òâµ½Õâ¸ö·½ÃæÄØ.
JAVAÖеĻù±¾Êý¾ÝÀàÐͲ»´æÔÚÎÞ·ûºÅµÄ£¬ËüÃǵÄȡֵ·¶Î§Êǹ̶¨µÄ£¬²»»áËæ×Å»úÆ÷Ó²¼þ»·¾³»òÕß²Ù×÷ϵͳµÄ¸Ä±ä¶ø¸Ä±ä¡£(Õâ¾ä³­µÄ)
Java¼òµ¥Êý¾ÝÀàÐÍ   ......

Java ÖеÄÄÚ²¿¾²Ì¬Àà

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± ......

JavaÒì³£´¦Àí

ÁùÖÖÒì³£´¦ÀíµÄªϰ
    Äã¾õµÃ×Ô¼ºÊÇÒ»¸öJavaר¼ÒÂð£¿ÊÇ·ñ¿Ï¶¨×Ô¼ºÒѾ­È«ÃæÕÆÎÕÁËJavaµÄÒì³£´¦Àí»úÖÆ£¿ÔÚÏÂÃæÕâ¶Î´úÂëÖУ¬ÄãÄܹ»Ñ¸ËÙÕÒ³öÒì³£´¦ÀíµÄÁù¸öÎÊÌâÂð£¿
Java´úÂë
OutputStreamWriter out = ...       
java.sql.Connection conn =& ......

java Ḭ̈߳²È«

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 ......

HSQLDB ¡¾Java¿ªÔ´ DBMSÊý¾Ý¿â¡¿

  HSQLDB(Hypersonic SQL)ÊÇ´¿Java¿ª·¢µÄ¹ØÏµÐÍÊý¾Ý¿â,²¢ÌṩJDBCÇý¶¯´æÈ¡Êý¾Ý¡£Ö§³ÖANSI-92 ±ê×¼ SQLÓï·¨¡£¶øÇÒËûÕ¼µÄ¿Õ¼äºÜС¡£´óÔ¼Ö»ÓÐ160K,ÓµÓпìËÙµÄÊý¾Ý¿âÒýÇæ¡£
תÌûʱÇë×¢Ã÷´ËÎÄÀ´×Ô¼¼ÊõÊÀ½ç:http://www.js4j.com ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØÍ¼ | ¸ÓICP±¸09004571ºÅ