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

javaÅжÏ×ÓÍøÑÚÂë

String[] ips = ipValue.split("\\.");
String binaryVal = "";
for (int i = 0; i < ips.length; i++)
{
String binaryStr = Integer.toBinaryString(Integer.parseInt(ips[i]));


Integer times = 8 - binaryStr.length();
......

JAVAÍøÂçÓ¦ÓÃϵͳ¿ª·¢µÄÐÂ˼¿¼·½·¨

ÄãÒ²ÐíÊÇÒ»¸ö¹¤³Ìʦ£¬ÕýÔÚʹÓÃEJB¡¢Struts¡¢Hibernate¡¢SpringµÈ¸÷ÖÖ¹úÍâÁ÷ÐеĿò¼Ü¿ª·¢ÄãµÄϵͳÖеĸ÷¸ö²¿·Ö£¬ËüÃÇÖ®¼ä¿¿²»Í¬µÄÅäÖÃÎļþ¡¢½Ó¿Ú¡¢·þÎñÁ¬½ÓÔÚÒ»Æð£¬ÎªÕâЩ½Ó¿Ú¡¢ÅäÖᢷþÎñµÄ±àд¡¢µ÷Óã¬Í·ÌÛÂð£¿
ÄãÒ²ÐíÊÇÒ»¸öPM£¬ ÕýÔÚΪÄãµÄÏîÄ¿²ÉÓÃʲô¿ò¼Ü¡¢ÈçºÎ·Ö×é¡¢ÈçºÎЭµ÷¡¢¸÷ÖÖ¿ò¼ÜµÄÓÅÁÓ×öÆÀ¹À¡¢²âÊÔ£¬ÎªÄãµÄÓ¦Ó ......

JavaÔ¶³ÌͨѶ¿ÉÑ¡¼¼Êõ¼°Ô­Àí

ÔÚ·Ö²¼Ê½·þÎñ¿ò¼ÜÖУ¬Ò»¸ö×î»ù´¡µÄÎÊÌâ¾ÍÊÇÔ¶³Ì·þÎñÊÇÔõôͨѶµÄ£¬ÔÚJavaÁìÓòÖÐÓкܶà¿ÉʵÏÖÔ¶³ÌͨѶµÄ¼¼Êõ£¬ÀýÈ磺RMI¡¢MINA¡¢ESB¡¢Burlap¡¢Hessian¡¢SOAP¡¢EJBºÍJMSµÈ£¬ÕâЩÃû´ÊÖ®¼äµ½µ×ÊÇЩʲô¹ØÏµÄØ£¬ËüÃDZ³ºóµ½µ×ÊÇ»ùÓÚʲôԭÀíʵÏÖµÄÄØ£¬Á˽âÕâЩÊÇʵÏÖ·Ö²¼Ê½·þÎñ¿ò¼ÜµÄ»ù´¡ÖªÊ¶£¬¶øÈç¹ûÔÚÐÔÄÜÉÏÓиߵÄÒªÇóµÄ»°£¬ÄÇÉ ......

Java¾²Ì¬±äÁ¿ÒÔ¼°·Ç±ê×¼µ¥Ì¬Ä£Ê½µÄ¿Ó

½ñÌìÓöµ½Ò»¸öºÜ¹îÒìµÄbug£¬µ÷ÊÔÁ˰ëÌìҲûÓп´³öÀ´ÓÐʲôÎÊÌ⣬³éÏóһϴúÂëÈçÏ£º
public class Instance
{

public static Instance instance = new Instance();

public static Map<String, String> map = new HashMap<String, String>();

public static Instance instance()
{

r ......

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