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

javaÖÐÓë(&)ºÍ»ò(|)ÔËËã

System.out.println(2|0); //0010 0000 =>0010 = 2
System.out.println(2|1); //0010 0001 =>0011 = 3
System.out.println(3|2); //0011 0010 =>0011 = 3
System.out.println(3&2); //0011 0010 =>0010 = 2
/*
  ÔÚjavaÖÐ0´ú±í¼Ù, 1´ú±íÕæ
  00011|0010  ´ÓÓÒµ½×ó±È½Ï0|1 = 1, 1|0 = 1 ½á¹ûΪ0011
  Ð¡Ìáʾ:Integer.toBinaryString(7),¿ÉÒÔ»ñµÃ7µÄ¶þ½øÖÆ
*/


Ïà¹ØÎĵµ£º

java ½âѹËõzipÎļþ

²âÊÔ»·¾³£ºwin2000+jdk1.4+jb2006
 import java.io.*;
import java.util.Enumeration;
//import java.util.zip.*;
import org.apache.tools.zip.*;
public class Test {
//½âѹÎļþ
  public static void extZipFileList(String zipFileName, String extPlace) {
    try {
   ......

JAVA Á¬½Ó³Ø BoneCP ²âÊÔ£¨2£© with spring 3

¶îÍâJAR°ü£º
org.springframework.expression-3.0.1.RELEASE.jar
org.springframework.asm-3.0.1.RELEASE.jar
org.springframework.beans-3.0.1.RELEASE.jar
p:statementCacheSize="100"
<bean id="masterDataSource" class="com.jolbox.bonecp.BoneCPDataSource" destroy-method="close"
p:driverClass="com.m ......

JAVA¼¸¸ö³£¼û´íÎó¼òÎö

1£¬¿ÕÖ¸Õë´íÎó java.lang.NullPointerException
ʹÓûù±¾µÄJAVAÊý¾ÝÀàÐÍ£¬±äÁ¿µÄֵҪôÒѾ­ÊÇĬÈÏÖµ£¬Èç¹ûûÓÐ¶ÔÆäÕý³£¸³Öµ£¬³ÌÐò±ã²»ÄÜͨ¹ý±àÒ룬Òò´ËʹÓûù±¾µÄJAVAÊý¾ÝÀàÐÍ
(double,float,boolean,char,int,long)Ò»°ã²»»áÒýÆð¿ÕÖ¸ÕëÒì³£¡£Óɴ˿ɼû£¬¿ÕÖ¸ÕëÒì³£Ö÷Òª¸úÓë¶ÔÏóµÄ²Ù×÷Ïà¹Ø¡£
ÏÂÃæÏÈÁгöÁË¿ÉÄÜ·¢Éú¿ÕÖ¸Õ ......

HTTPs in java dev @IBM

      ×î½üÔÚ¿ª·¢Ò»¸öСµÄESBϵͳ£¬»áÔÚÕâÀïճһЩ¾õµÃ»áÓõĵ½µÄÎÄÕ¡£
³ö×Ô£ºwww.ibm.com.cn MattTowers 2002Äê10ÔÂ08ÈÕ
ÕªÒª
ʹÓà HTTPS£¨Hypertext Transfer Protocol Secure °²È«³¬Îı¾´«ÊäЭÒ飩²¢·ÇÄãËùÏëµÄÄÇÑù¼òµ¥Ö±½Ó¡£Èç¹ûÄãÔø¾­³¢ÊÔÔÚ Java ¿Í»§¶ËºÍ HTTPS ·þÎñÆ÷Ö®¼ä½øÐа²È«µÄͨ ......

java ²Ù×÷¶ÌÐÅèʵÏÖ¶ÌÐÅȺ·¢

²ÉÓô®¿Ú²Ù×÷½øÐжÌÐÅÊÕ·¢,ÊDZȽϳ£¼ûµÄÒ»ÖÖ·½Ê½.±ÈÈç,ºÜ¶àȺ·¢Èí¼þ,ÓõľÍÊÇÕâÖÖ·½·¨.
1.ÅäÖÃcomm.jar.
Comm.jarÊÇSubʵÏֵײ㴮¿Ú²Ù×÷µÄAPI,µ÷ÓÃÁ˱¾µØµÄDLLÎļþ,ÒòΪJava±¾Éí²»¾ß±¸Ö±½Ó·ÃÎÊÓ²¼þÉèÖõÄÄÜÁ¦,¶¼ÊÇͨ¹ýµ÷Óñ¾µØ·½·¨À´Êµ
ÏÖµÄ.¿ÉÒÔJavaµÄ¹Ù·½ÍøÕ¾ÏÂÔØ.ÏÂÔØÖ®ºó°ÑÆäÖÐComm.jar°üµ¼Èëµ½¹¤³ÌµÄClasspathÖÐ,°Ñ ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØÍ¼ | ¸ÓICP±¸09004571ºÅ