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
Java´úÂ룺
import java.util.regex.*;
public final class RegExpValidator
{
/**
* ÑéÖ¤ÓÊÏä
* @param ´ýÑéÖ¤µÄ×Ö·û´®
* @return Èç¹ûÊÇ·ûºÏµÄ×Ö·û´®,·µ»Ø <b>true </b>,·ñÔòΪ <b>false </b>
*/
public static boolean isEmail(String str)
{
......
¡¾Òý×Ô¼üÅÌÉϵÄÎèÕߵIJ©¿Í¡¿Í¼Ïñ±àÂëÊä³öµÄ·½·¨£¬Ìṩ±àÂë½ø¶È¼àÌý£¬ÉèÖñàÂëÖÊÁ¿µÄÖ§³Ö£¨Ìض¨¸ñʽ£¬ÀýÈçJPG£©¡£
Õâ¸ö·½·¨Ö§³ÖµÄ±àÂë¸ñʽÒÀÀµÔËÐл·¾³ÀïImageIOÒѾע²áImageWriter¼¯ºÏ¡£
Java SE 6ÖеÄImageIOĬÈÏÖ§³ÖJPG£¬BMP£¬PNG£¬GIFµÈ¸ñʽ£¬Ò²¿ÉÒÔͨ¹ý·Ç±ê×¼Àà¿âÌí¼ÓImageIO¶ÔͼÏñ¸ñʽµÄÖ§³Ö£¬±ÈÈç°²×°JAI_ImageIO¡ ......
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import java.util.*;
public class Temp {
public Temp() {
JFrame J = new JFrame("MENU");
Container C = J. ......
µÚÒ»ÖÖÇé¿ö£ºÎÞ·µ»ØÖµ.
create or replace procedure test_a(param1 in varchar2,param2 in varchar2) as
begin
insert into test value(param1,param2);
&nb ......
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 ......