Ò׽ؽØͼÈí¼þ¡¢µ¥Îļþ¡¢Ãâ°²×°¡¢´¿ÂÌÉ«¡¢½ö160KB

ÒøÐбÊÊÔÌâ java±ÊÊÔÌâ

ÒøÐбÊÊÔÌâ¼°´ð°¸:java±ÊÊÔÌâ¼°´ð°¸ 
 
1¡¢×÷ÓÃÓòpublic,private,protected,ÒÔ¼°²»Ð´Ê±µÄÇø±ð
  ´ð£º
Çø±ðÈçÏ£º  
×÷ÓÃÓò           µ±Ç°Àà       ͬһpackage     ×ÓËïÀà      ÆäËûpackage  
public               √              √                 √                 √ 
protected         √              √                √                 ×  
 friendly            √              √               ×                 ×  
private              √              ×               ×                ×  
²»Ð´Ê±Ä¬ÈÏΪfriendly   
2¡¢Anonymous Inner Class (ÄäÃûÄÚ²¿Àà) ÊÇ·ñ¿ÉÒÔextends(¼Ì³Ð)ÆäËüÀ࣬ÊÇ·ñ¿ÉÒÔimplements(ʵÏÖ )interfa


Ïà¹ØÎĵµ£º

Java NIO APIÏê½â

 
Java NIO APIÏê½â
ÔÚJDK
1.4ÒÔÇ°£¬JavaµÄIO²Ù×÷¼¯ÖÐÔÚjava.ioÕâ¸ö°üÖУ¬ÊÇ»ùÓÚÁ÷µÄ×èÈû£¨blocking£©API¡£¶ÔÓÚ´ó¶àÊýÓ¦ÓÃÀ´Ëµ£¬ÕâÑùµÄAPIʹÓúܷ½
±ã£¬È»¶ø£¬Ò»Ð©¶ÔÐÔÄÜÒªÇó½Ï¸ßµÄÓ¦Óã¬ÓÈÆäÊÇ·þÎñ¶ËÓ¦Óã¬ÍùÍùÐèÒªÒ»¸ö¸üΪÓÐЧµÄ·½Ê½À´´¦ÀíIO¡£´ÓJDK 1.4Æð£¬NIO
API×÷Ϊһ¸ö»ùÓÚ»º³åÇø£¬²¢ÄÜÌṩ·Ç×èÈû(non-blo ......

´«ÖDz¥¿ÍµÄJAVA SE¸ß¼¶ÊÓƵ1 API ×Ôѧ±Ê¼Ç

2009-12-20 22:15:02
½ñÌ컨ÁËÒ»Ììʱ¼ä°Ñ´«ÖDz¥¿ÍµÄJAVA SE¸ß¼¶ÊÓƵ1 API¿´ÍêÁË£¬»¹¿´ÁËÒ»²¿·Ö¸ß¼¶Ê³Æ·2 IOµÄÊÓƵ£¬ÒÔÏÂÊÇAPIµÄ±Ê¼Ç¡£
API: Application Programming Interface Ó¦ÓóÌÐò±à³Ì½Ó¿Ú
    windows API£ºwindowsϵͳÌṩµÄ
    JAVA API£ºJDKÖÐÌṩµÄ¸÷ÖÖjavaÀà(ÕÆÎÕ³£ÓõÄAPI ......

JavaÖжÑÓëÕ»µÄÇø±ð

Õ»Óë¶Ñ¶¼ÊÇJavaÓÃÀ´ÔÚRAMÖдæ·ÅÊý¾ÝµÄµØ·½¡£ÓëC++²»Í¬£¬Java×Ô¶¯¹ÜÀíÕ»ºÍ¶Ñ£¬³ÌÐòÔ±²»ÄÜÖ±½ÓµØÉèÖÃÕ»»ò¶Ñ¡£
JavaµÄ¶ÑÊÇÒ»¸öÔËÐÐʱÊý¾ÝÇø,ÀàµÄ¶ÔÏó´ÓÖзÖÅä¿Õ¼ä¡£ÕâЩ¶ÔÏóͨ¹ýnew¡¢newarray¡¢anewarrayºÍmultianewarrayµÈÖ¸ÁÁ¢£¬ËüÃDz»ÐèÒª³ÌÐò´úÂëÀ´ÏÔʽµÄÊÍ·Å¡£¶ÑÊÇÓÉÀ¬»ø»ØÊÕÀ´¸ºÔðµÄ£¬¶ÑµÄÓÅÊÆÊÇ¿ÉÒÔ¶¯Ì¬µØ·ÖÅäÄÚ´æ´ ......

ÓÃJava½Ó¿ÚʵÏֻص÷º¯ÊýµÄµÈ¼Û¹¦ÄÜ

ÓÃJava½Ó¿ÚʵÏֻص÷º¯ÊýµÄµÈ¼Û¹¦ÄÜ
Ê×ÏÈ£¬¿´Ò»Ï»ص÷º¯ÊýµÄ¶¨Òå¼°ÆðÔ´£º
¼ò¶øÑÔÖ®£¬»Øµ÷º¯Êý¾ÍÊÇÒ»¸öͨ¹ýº¯ÊýÖ¸Õëµ÷Óõĺ¯Êý£¬Èç¹ûÄã°Ñº¯ÊýµÄÖ¸Õë(µØÖ·)×÷Ϊ²ÎÊý´«µÝ¸øÁíÒ»¸öº¯Êý£¬µ±Õâ¸öÖ¸Õë±»ÓÃΪµ÷ÓÃËüËùÖ¸ÏòµÄº¯Êýʱ£¬ÎÒÃǾÍ˵Êǻص÷º¯Êý¡£
ΪʲôҪʹÓûص÷º¯Êý£¿
ÒòΪ¿ÉÒ԰ѵ÷ÓÃÕßÓë±»µ÷ÓÃÕß·Ö¿ª¡£µ÷ÓÃÕß²»¹ØÐı» ......

JavaλÔËËã·ûºÅ²Ù×÷£¨×ª£©

Java ¶¨ÒåµÄλÔËË㣨bitwise operators £©Ö±½Ó¶ÔÕûÊýÀàÐ͵Äλ½øÐвÙ×÷£¬ÕâЩÕûÊýÀàÐÍ°üÀ¨long£¬int£¬short£¬char£¬and byte ¡£±í4-2 ÁгöÁËλÔËË㣺
±í4.2 λÔËËã·û¼°Æä½á¹û
ÔËËã·û ½á¹û
~ °´Î»·Ç£¨NOT£©£¨Ò»ÔªÔËË㣩
& °´Î»Ó루AND£©
| °´Î»»ò£¨OR£©
^ °´Î»Òì»ò£¨XOR£©
>> ÓÒÒÆ
>>> ÓÒÒ ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØͼ | ¸ÓICP±¸09004571ºÅ