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

javaµ÷Óô洢¹ý³Ì

//µ÷Óô洢¹ý³Ì´ø²Î
            CallableStatement ca = conn.prepareCall("{call Login (?,?)}");
            ca.setString(1,username);
            ca.setString(2,password);
            ca.execute();
//µ÷Óô洢¹ý³Ì´ø·µ»Ø²ÎÊýµÄ
            CallableStatement ca = conn.prepareCall("{call Login (?,?,?)}");
            ca.setString(1,username);
            ca.setString(2,password);
            ca.registerOutParameter(3,java.sql.Types.INTEGER);
            ca.execute();
            int returnOut = ca.getInt(3);
 //µ÷Óô洢¹ý³Ì´ø·µ»ØÖµµÄreturn
            CallableStatement ca = conn.prepareCall("{?=call Login (?,?,?)}");
            ca.setString(2,username);
            ca.setString(3,password);
            ca.registerOutParameter(1,java.sql.Types.INTEGER);
            ca.execute();
            int returnOut = ca.getInt(1);
    //µ÷Óô洢¹ý³Ì·µ»ØÁ½¸ö½á¹û¼¯
            CallableStatement ca = conn.prepareCall("{call Login (?,?,?)}");
            ca.setString(1,usern


Ïà¹ØÎĵµ£º

java parse excel

import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import org.apache.log4j.Logger;
import org.apache.poi.hssf.usermodel.HSSFCell;
import org.apache.poi.hssf.usermodel.HSSFRo ......

Java±à³ÌÓïÑԵİ˴óÓŵã

    1¡¢Óï·¨£º±ØÐë±È½ÏÊìϤ£¬ÔÚд´úÂëµÄʱºòIDEµÄ±à¼­Æ÷¶ÔijһÐб¨´íÓ¦¸ÃÄܹ»¸ù¾Ý±¨´íÐÅÏ¢ÖªµÀÊÇʲôÑùµÄÓï·¨´íÎó²¢ÇÒÖªµÀÈκÎÐÞÕý¡£
    2¡¢ÃüÁ±ØÐëÊìϤJDK´øµÄһЩ³£ÓÃÃüÁî¼°Æä³£ÓÃÑ¡ÏÃüÁîÖÁÉÙÐèÒªÊìϤ£ºappletviewer¡¢ HtmlConverter¡¢jar¡¢ java¡¢javac¡¢javadoc¡¢javap¡¢javaw¡¢ ......

ѧϰJavaÀàµÄÊôÐÔ

ѧϰJavaÀàµÄÊôÐÔ-Î人±±´óÇàÄñ
¡¡¡¡Public¡¢private¡¢protectedÏÔʾÁËÈýÖÖÀàÖеÄÊôÐԺͷþÎñµÄÀàÐÍ£¬publicÊÇ¿ÉÒÔËæÒâ·ÃÎʵġ¢privateÊÇÍâ½ç²»ÄÜ·ÃÎʵÄ(ÏÔʾÁËÊý¾ÝµÄ·â×°ÐÔ)¡¢protected˵Ã÷Êý¾ÝÊÇÊܱ£»¤µÄ¡£ÏÂÃæ¾ÍÀ´Ïêϸ½²ÊöÒ»ÏÂÕâÈý¸ö¾¿¾¹ÓÐÊ²Ã´Çø±ð¡£
¡¡¡¡Ê×ÏÈÒªÁ˽âһϰüµÄ¸ÅÄî¡£ÓÐÈô¸É¸öÀ࣬ËüÃÇÏ໥֮¼äÓÐÒ»¶¨µÄ¹ØÏ ......

Java,JavaScript,JScript Çø±ð

ÕâÈý¸öÓïÑÔ·Ö±ðÊÇÈý¸ö¹«Ë¾¿ª·¢µÄ£¬SUNµÄJava£¬NetscapeµÄJavaScript£¬MicrosoftµÄJScript
JavaScriptÊÇÓÉNetscape¹«Ë¾¿ª·¢²¢ËæNavigatorµ¼º½ÕßÒ»Æð·¢²¼µÄ¡¢½éÓÚJavaÓëHTMLÖ®¼ä¡¢»ùÓÚ¶ÔÏóʼþÇý¶¯µÄ±à³ÌÓïÑÔ£¬²»ÐèÒªJava±àÒëÆ÷£¬¶øÊÇÖ±½ÓÔËÐÐÔÚWebä¯ÀÀÆ÷ÖУ¬ËüµÄǰÉíÊÇLive Script¡£
JScriptÊÇÒ»ÖÖÀàËÆJavaScriptµÄÓïÑÔ¡ ......

java ±È½ÏÆ÷µÄʹÓÃ

¶ÔÓÚÒ»¸öʵÏÖÁËComparable½Ó¿ÚµÄ¶ÔÏ󣬸ýӿÚÖ»ÄÜʵÏÖÒ»´Î¡£Èç¹ûÔÚÒ»¸ö¼¯ºÏÀïÃæÐèҪʹÓÃidÅÅÐò£¬¶øÔÚÁíÍâÒ»¸ö¼¯ºÏÀïÐèÒª°´Ãû×ÖÅÅÐòÕâʱ¾ÍÐèÒªÔÚÕâ¸ö¼¯ºÏÀïÃæÖ¸¶¨±È½ÏÆ÷¡£
Comparable½Ó¿ÚÉùÃ÷ÁËcompareTo(Object o)·½·¨
Comparator ½Ó¿ÚÉùÃ÷ÁËcompare(Object o1,Object o2)·½·¨
eg:
µÚÒ»¸öÊ÷¼¯Êǰ´ÕÕ¶ÔÏóĬÈϵÄidÅÅÐò£¬µ ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØÍ¼ | ¸ÓICP±¸09004571ºÅ