javaµãµã»ù´¡
1£º8ÖÖ»ù±¾Êý¾ÝÀàÐÍ
byte,Ò»¸ö×Ö½Ú£»
short,Á½¸ö×Ö½Ú£»
int,Ëĸö×Ö½Ú£»
long,°Ë¸ö×Ö½Ú£»
float,Ëĸö×Ö½Ú;
double,°Ë¸ö×Ö½Ú£»
char,Á½¸ö×Ö½Ú£»
boolean,Ò»¸ö×Ö½Ú¡£
JavaÖÐÉæ¼°byte¡¢shortºÍcharÀàÐ͵ÄÔËËã²Ù×÷Ê×ÏÈ»á°ÑÕâЩֵת»»ÎªintÀàÐÍ£¬È»ºó¶ÔintÀàÐÍÖµ½øÐÐÔËË㣬×îºóµÃµ½intÀàÐ͵Ľá¹û¡£Òò´Ë£¬Èç¹û°ÑÁ½¸öbyteÀàÐÍÖµÏà¼Ó£¬×îºó»áµÃµ½Ò»¸öintÀàÐ͵Ľá¹û¡£Èç¹ûÐèÒªµÃµ½byteÀàÐͽá¹û£¬±ØÐ뽫Õâ¸öintÀàÐ͵Ľá¹ûÏÔʽת»»ÎªbyteÀàÐÍ¡£
Ïà¹ØÎĵµ£º
´úÂëÈçÏ£º
1 String command = " cmd /c C:/Program Files/MySQL/MySQL Server 5.0/bin>mysqldump -h localhost -u root -p aijia > E:/aijia.dmp " ;
2 try {
3 Process process& ......
JCP SE/EE Ö´ÐÐίԱ»á
Õýʽ½ÓÊÜÁË
JSR 330
—— Dependency Injection for Java¡£¸Ã¹æ·¶ÓÚ ½ñÄê 5 Ô 9 ÈÕ
ÓÉ Google µÄ Bob Lee ÒÔ¼° SpringSource µÄ Rod Johnson ×÷Ϊ¹æ·¶Áìµ¼Ìá½»¸ø JCP£¬ÏÖÔÚÒѾÕýʽ·¢²¼£¬²»µÃ²»¸Ð̾¸Ã¹æ·¶±ê×¼»¯¹ý³ÌÖ®¿ì¡£ÔÚ ×îÖÕͶƱ½á¹ûÖÐ
£¬14 Ʊͨ¹ý£¬1 ƱδͶ£¬1 Ʊ·´¶Ô¡£
J ......
ÕâÊÇÒ»¸öÓÃJAVA W3C DOM ½øÐÐXML²Ù×÷µÄÀý×Ó£¬°üº¬Á˲éѯ¡¢Ôö¼Ó¡¢Ð޸ġ¢É¾³ý¡¢±£´æµÄ»ù±¾²Ù×÷¡£½ÏÍêÕûµÄÃèÊöÁËÒ»¸öXMLµÄÕû¸ö²Ù×÷Á÷³Ì¡£ÊʺϸÕÈëÃÅJAVA XML²Ù×÷µÄÅóÓѲο¼ºÍѧϰ¡£
¼ÙÉèÓÐXMLÎļþ£ºtest1.xml
<?xml version="1.0" encoding="UTF-8"?>
<books>
<book>
< ......
Ç°Ò»ÕóÔÚ¹«Ë¾ÀïʹÓà jconsle ʱһÇÐÕý³££¬È»¶øÔÚ¼ÒÖеĻúÆ÷ÉÏÈ´³öÏÖÁ˱êÌâËùʾµÄÎÊÌ⣺
jconsole ºÍ jps ÎÞ·¨ÏÔʾ±¾µØ Java ½ø³ÌÁÐ±í¡£
µ±Ê±Ö±½ÓÀûÓà -Dcom.sun.management.jmxremote.port=port Æô¶¯Ä¿±ê java ½ø³Ì£¬²¢ÔÚ jconsole ÖÐͨ¹ý localhost:port ·½Ê½³É¹¦Á¬½ÓÉÏÄ¿±ê java ½ø³Ì¡£ÓÐÁËÕâ¸ö work around Ö®ºó£¬¶ÔÕ ......
תÌû´¦£ºhttp://dong-java.javaeye.com/blog/375150
1¡£ÍƼöʹÓÃOralce±È½ÏеÄ10.2.0.3 JDBC Drivers¡£Õâ¸ö°æ±¾¶Ô±È9.2µÄ×î´óµÄºÃ´¦ÊÇDriverManager.setLoginTimeoutº¯ÊýÊÇÆð×÷Óõġ£ÉèÖÃÁËÕâ¸ö²ÎÊý£¬ÔÚ¶ñÁÓµÄÍøÂç»·¾³ÖоͲ»»áÓÐÁ¬½ÓÊý¾Ý¿âµÄº¯Êý³¤Ê±¼ä²»·µ»ØµÄÇé¿ö¡£
2¡£JDBC Developer!ˉs Guide and Refer ......