javaÖÐMath()º¯Êý - Java / J2ME
sqroot=Math.sqrt(num); Ìáʾ ¡°.¡±´¦ÕÒ²»µ½·ûºÅ£¬µ«ÊÇÔÚÓеĵط½¾ÍûÓÐÎÊÌâ ÕâÊÇÔõô»ØÊ£¿
Â¥Ö÷²»»áÊÇÊäÈ뷨Ū´íÁË°É ÄãÊDz»ÊÇûÓÐдÔÚ·½·¨ÌåÀïÃ棬дµ½Àà³ÉÔ±±äÁ¿ÀïÁË Math³åÍ»ÁË°É¡£ ÓÃÈ«³Æ¡£sqroot=java.lang.Math.sqrt(num);ÒýÓà ÄãÊDz»ÊÇûÓÐдÔÚ·½·¨ÌåÀïÃ棬дµ½Àà³ÉÔ±±äÁ¿ÀïÁË ÓеÀÀí ÔÚÎҵĵçÄÔÉÏûÓÐÎÊÌâ £¬µ«ÊÇÔÚ±ðÈ˵ĵçÄÔÉϾͱ¨´í£¡£¡½ÐÈ˺ÜÓôÃÆ LZ ÊäÈëµãµÄʱºòÓÃÁËÖÐÎÄ°É ÒªÓ¢ÎÄ״̬µÄÒýÓà ÔÚÎҵĵçÄÔÉÏûÓÐÎÊÌâ £¬µ«ÊÇÔÚ±ðÈ˵ĵçÄÔÉϾͱ¨´í£¡£¡½ÐÈ˺ÜÓôÃÆ ÄÇÓ¦¸ÃÊDZðÈ˵çÄÔ»·¾³±äÁ¿µÄÎÊÌâ µãÄÖ²»ÊÇÓиö»·¾³±äÁ¿ÉèÖÃÂð£¿ºÇºÇ ²»ºÃÒâ˼£¬Óиö×Ö´ò´íÁ˲»ÊÇ¡°ÄÖ¡±ÊÇ¡°ÄÔ¡± ¿ÉÄÜÊDZðÈ˵Ļ·¾³±äÁ¿Ã»ÅäºÃ¡£»òÊÇÄãÊäÈëµÄ²»¶Ô£¬Ò²¿ÉÊÇÄãµÄ¿ÉÄÜȱÉÙijЩjar°ü£¬ÄãÒÀ´ÎÕÒÕÒ£¬¿´¿´ ûÓÐдÔÚ·½·¨ÌåÀïÃ棬дµ½Àà³ÉÔ±±äÁ¿ÀïÁË Í¬Òâ¶þÂ¥µÄ¿´·¨
Ïà¹ØÎÊ´ð£º
¸÷·´óÏÀ¸ø¸ö˼·£¬²»ÊÇÔÚÏßµÄÄÇÖÖ£¬¾ÍÊÇÒ»¸ö×öÆÕͨµÄÓ¦ÓóÌÐò¡£ ´Ê¿âÔõôÉú³ÉÄØ£¿ ²»»á¡£ ÒýÓà ´Ê¿âÔõôÉú³ÉÄØ£¿ ÕÒ±¾×Öµä ÒýÓà ´Ê¿âÔõôÉú³ÉÄØ£¿ Êý¾Ý¿â ºÇºÇ ÓÃmap ¼üÖµ¶ÔÓ¦ Èç¹ûÓÃÊý¾Ý¿ ......
org.apache.jasper.JasperException: Unable to compile class for JSP: An error occurred at line: 52 in the jsp file: /vip_info.jsp ÕË cannot be resolved 49: <table border="1& ......
ÔÚJSPÒ³ÃæÓÐÒ»¸ö<input type="hidden" name="index" value="0">/>¿Ø¼þ µ±ÎÒÓÃÏÂÃæµÄJavaScriptº¯Êý¸Ä±äÆävalueµÄÖµµÄʱºò Èç¹ûÂú×ãÌõ¼þ£¨¼´i>=3µÄʱºò£©ÎªÊ²Ã´valueµÄ ......
java swing ³ÌÐòÈçºÎ´ò°ü³Éjar£¬È»ºó¿ÉÒÔͨ¹ýÅú´¦ÀíÎļþbatÖ±½ÓÔËÐУ¬ÓÐûÓÐʲô¹¤¾ßÖ±½Ó¿ÉÒÔÍê³ÉÕâÁ½¸ö¹¤×÷£¿ ÓÃjar´ò°ü£¬°ÑÔËÐÐÐèÒªµÄjar¿½±´µ½Ò»¸öĿ¼£¬Åú´¦ÀíÓà start javaw -cp .;ÆäËû°ü·¾¶ ÔËÐÐ ÓÃzip ......
È磺 @superwaring("unchecked"); Õâ¸öÀïÃ涼¿ÉÒÔÈ¡ÄÄЩֵ°¡£¬»¹ÓÐÀàËÆµÄ @superwaring±êÇ©ÓÐÄÄЩ°¡ ûÓùý¡£¡£ ¿´jeeµÄapi javax.persistenceÀï @superwaring("unchecked");Ö»ÊǺöÂÔ ......