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

»ñÈ¡javaµÄ·¾¶

¶ÔÓÚJava³ÌÐò£¬ÎÞÂÛÊÇδ´ò°üµÄ»¹ÊÇ´ò°üµÄJAR»òWARÎļþ£¬ÓÐʱºò¶¼ÐèÒª»ñÈ¡ËüÔËÐÐËùÔÚĿ¼ÐÅÏ¢£¬ÈçºÎ×öµ½ÕâÒ»µãÄØ£¿
ÔÚJava´¦ÀíµÄÎļþϵͳÖУ¬Ä¿Â¼µÄ±íʾ·½Ê½ÓÐÁ½ÖÖ£º
£¨1£©¾ø¶ÔĿ¼£¬ËüÒÔ"/"ΪÆðʼ×Ö·û£¬´ú±í´Ó¸ùĿ¼Ï¿ªÊ¼Ñ°ÕÒ¸ø³öµÄĿ¼£¬Èç/c:/java
£¨2£©Ïà¶Ô·¾¶£¬ËüÒÔ²»´ø“/”µÄĿ¼Ãû±íʾ£¬±íʾÒÔµ±Ç ......

javaÖеĶà̬

ÃæÏò¶ÔÏó±à³ÌÓÐÈý¸öÌØÕ÷£¬¼´·â×°¡¢¼Ì³ÐºÍ¶à̬¡£
 
    ·â×°Òþ²ØÁËÀàµÄÄÚ²¿ÊµÏÖ»úÖÆ£¬´Ó¶ø¿ÉÒÔÔÚ²»Ó°ÏìʹÓÃÕßµÄǰÌáϸıäÀàµÄÄÚ²¿½á¹¹£¬Í¬Ê±±£»¤ÁËÊý¾Ý¡£
 
    ¼Ì³ÐÊÇΪÁËÖØÓø¸Àà´úÂ룬ͬʱΪʵÏÖ¶à̬ÐÔ×÷×¼±¸¡£ÄÇôʲôÊǶàÌ¬ÄØ£¿
 
    ·½·¨µÄÖØÐ´ ......

JAVA¹ú¼Ê»¯


Á˽âȱʡLocaleÊÇÓɲÙ×÷ϵͳ¾ö¶¨µÄ£¬LocaleÊÇÓÉÓïÑԺ͹ú¼Ò´úÂë×é³É
¹ú¼Ê»¯×ÊÔ´ÎļþÓÉbaseName+locale×é³É£¬È磺MessageBundle_en_US.properties£¨baseNameÊÇÈÎÒâºÏ·¨µÄÎļþÃû£©
native2asciiÃüÁîµÄλÖúÍÓ÷¨
λÖãºJAVA_HOME/bin
ʹÓÃnative2ascii.exe o.properties MessagesBundle_zh_CN.properties ÃüÁî¶ÔÕû¸öÎļþ ......

java´¦Àí Excel(POI°ü)


×î½üÔÚÔÛÃÇÕâ¸öÂÛ̳Àï×ÜÄÜ¿´¼û´ó¼ÒÌá³öÓÃjava´¦ÀíExcelµÄÎÊÌ⣬ÓÐʱ»¹Éæ¼°µ½Í¼ÐεÄÎÊÌ⣬
´ó¼Ò¿´ÁËÕâÆªÎÄÕºó£¬ÎÒÏëÒ»¶¨»á½â¾ö²»ÉÙÈ˵ÄÎÊÌ⣡
¿´µ½ÍøÉϺܶàÎÄÕ¶¼Ò»Ö±¶¼ÊÇ˵POIµÄAPI²»ÄÜ´¦ÀíͼÐΣ¬Ò²¾ÍÊDz»ÄÜÍùExcelÀïÃæ¼ÓÈëͼÐΡ£
µ«ÊÂʵÉÏ£¬POI3.0³öÀ´Ö®ºó£¬Õâ¸öÎÊÌâÒѾ­½â¾ö£¡ËùÒÔ˵£¬ÍùExcelÀïÃæ¼ÓÈëͼÐβ»±ØÒ»¶¨Ç ......

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