[JAVA] Éî¿Ë¡ ÁíÍâʵÏÖ·½·¨¡¾ÐòÁл¯¡¿
private static List cloneObject(
Object obj) throws Exception {
ByteArrayOutputStream byteOut = new ByteArrayOutputStream();
ObjectOutputStream out = new ObjectOutputStream(byteOut);
out.writeObject(obj);
ByteArrayInputStream byteIn = new ByteArrayInputStream(byteOut
.toByteArray());
ObjectInputStream in = new ObjectInputStream(byteIn);
return in.readObject();
}
Ïà¹ØÎĵµ£º
MysqlÔÚĬÈÏÇé¿öϽ¨Á¢±íµÄ×Ö·û±àÂëÊÇlatin1£¬ËùÒÔÔÚ²åÈëÖÐÎÄʱ»á³ö´í¡£
eg£º
1¡¢²é¿´±í½¨Á¢µÄsqlÔ´Â룺
1: sqlÃüÁshow create table users
2:
3: ½á¹û£º
4: CREATE TABLE `users` (
5: `userID` int(10) unsigned NOT NULL AUTO_INCREMENT,
6: `userName` varchar(4 ......
ÖÐС
JavaÖй²ÓÐÈý¸öÒÆÎ»²Ù×÷·û£¬·Ö±ðÊÇ£º
<<£º×óÒÆ²Ù×÷£¬ËùÓвÙ×÷ÊýÏò×óÒÆ¶¯£¬Ã¿ÒÆÒ»Î»×îÓÒ±ßÓÃ0²¹³ä
>>£º´ø·ûºÅλÓÒÒÆ£ºÁ¬Í¬·ûºÅλһÆðÓÒÒÆ£¬Ã¿ÒÆÒ»Î»×î×ó±ßÓ÷ûºÅλ²¹³ä
>>>£ºÎÞ·ûºÅÓÒÒÆ£ºÁ¬Í¬·ûºÅλһÆðÓÒÒÆ£¬Ã¿ÒÆÒ»Î»×î×ó±ßÓÃ0²¹³ä
ÒÆÎ»²Ù×÷·ûÖ»ÄÜ×÷ÓÃÓÚÕûÊýÀàÐÍ£¬¼´byte£¬short£¬char£¬i ......
ÓÐÒ»µÀÕâÑùµÄ±ÊÊÔÌ⣬¶ÔÓÚ³õѧÕß¿ÉÄÜÓÐЩÄѶȣº
ÓÃJAVA ʵÏÖËãÊõ±í´ïʽ(1234324234324 + 8938459043545)/5 + 343434343432.59845
ÒòΪJAVAÓïÑÔÖеÄlong ¶¨ÒåµÄ±äÁ¿ÖµµÄ×î´óÊýÊܵ½ÏÞÖÆ£¬ÀýÈç123456789987654321ÕâÑùµÄÕûÊý¾Í²»ÄÜ´æ·ÅÔÚlongÀàÐ͵ıäÁ¿ÖУ¬Èç¹ûÕâÑùÁ½¸ö´óÊýÏà¼Ó»òÏà³Ë£¬²úÉúµÄ½á¹û»á¸ü´ó¡£±ÈÈ磬JAVAÓïÑÔÖÐÈç ......
jdkµÄ°²×°
1¡¢´Ójava.sun.com¸ãÏÂjdk×îеİ汾£¬Ò»°ãÎÒÃÇÓÃ1.6°æ±¾µÄ£¬ÏÂÔØbin¸ñʽµÄjdk£¬¼Ù¶¨ÏÂÔØµÄÎļþÃûΪjdk-6u20-linux-i586.bin¡£
2¡¢chmod u+x jdk-6u20-linux-i586.bin;È»ºó ./jdk-6u20-linux-i586.bin ½âѹ£¬¼Ù¶¨½âѹºóµÄÎļþ¼ÐΪ jdk1.6_20;
3¡¢ÔÚ/usr/local/ ½¨Á¢Ò»¸öinstallµÄĿ¼£¬ È»ºó°Ñ½âÑ ......