Ò׽ؽØÍ¼Èí¼þ¡¢µ¥Îļþ¡¢Ãâ°²×°¡¢´¿ÂÌÉ«¡¢½ö160KB

javaÖÐdoubleÊý×éµÄĬÈÏÖµ

javaÖÐdoubleÊý×éµÄĬÈÏÖµ
Êý×éµÄĬÈÏÊÇnull    ÿһ¸öÔªËØÊÇ0.0£¨doubleÐ͵ģ©

double[] demo = new double[10];
System.out.println(demo[1]);
¿´¿´

ÒýÓÃ
double[] demo = new double[10];
System.out.println(demo[1]);
¿´¿´

Ó¦¸ÃÊÇnull°É£¿


Ïà¹ØÎÊ´ð£º

java http ÎÊÌâ - Java / Java EE

ÎÊÌâÃèÊö£ºÐ´ÈÕÖ¾¹¦ÄÜ£¬Ð´ºÃµÄдÈÕÖ¾·þÎñ£¬ÆäËûÓû§Í¨¹ýhttpµ÷Ó÷þÎñ£¬´«Èë²ÎÊý£¬È»ºó¼Ç¼ÈÕÖ¾£¬
  ÎҵķþÎñ¸ÃÔõôд£¬ ±ðÈËÔõôͨ¹ýhttpµ÷ÓÃÎҵķþÎñ£¬ÎÒÓÃwebserviceдºÃÁËÒ»¸ö£¬¿ÉÊDz¢·¢ÓÐÉÏÏߣ¬Ïë¸ÄÓ ......

javaÔõôÁ¬½ÓOracle£¬¼±°¡ - Java / JavaÏà¹Ø

private static final String URL = "jdbc:oracle:thin:@localhost:1521:orcl";
private static final String USERNAME = "sys";
private static final String PASSWORD = "s ......

Çójspµç×ÓÉÌÎñÍøÕ¾Ô´Âë - Java / Web ¿ª·¢

Ïë×öÒ»¸öjspµÄµç×ÓÉÌÎñÍøÕ¾£¬ÏëÕÒһЩԴ´úÂ룬ÇëÎÊÄǸöÍøÕ¾ÓкõÄ×ÊÔ´¡£Ð»Ð»£¡
ËÑË÷Ï塃 ¿ªÔ´µÄÒ²ÓÐ

csdn¾ÍÓÐÏàËÆµÄÔ´Â룬¥Ö÷ËÑÒ»ÏÂ

java ¿ªÔ´´óÈ«


¸ÄÄ£°åºÃÂ鷳Ŷ£¬»¹²»Èç×Ô¼ºÐ´¸öÁËÄØ

jf

¶¥Ò» ......

execlÔõôµ÷ÓÃjava³ÌÐò - C/C++ / CÓïÑÔ

ÈçÌ⣬C/C++ÖеÄexeclÔõôµ÷ÓÃдºÃµÄjava³ÌÐò£¬
execl("/opt/java1.5/bin/java","MyClass",NULL);
ÕâÑùµÄ²»ÐÐŶ¡£

²»»á.

ÔËÐÐjava³ÌÐò
ÕÒ¹¤¾ß²é¿´Ò»ÏÂÄǸö³ÌÐòµÄÃüÁîÐÐ

ËÑË÷Ï£ºjni ......

C/SÏîÄ¿¼Ü¹¹Éè¼Æ----ÇóÖú - Java / Java SE

±¾ÈËÕýÔÚÓÃJava×öÒ»¸öC/S¼Ü¹¹µÄÏîÄ¿£¬ 
¿ÉÊÇÓÉÓÚÏîÄ¿±È½Ï´ó£¬Ç°ÆÚ¶Ô¼Ü¹¹µÄÉè¼ÆÓÈÆäÖØÒª£¬ÒòΪºóÆÚ¿ÉÄÜËæÊ±»á¼Ó¸ö¹¦ÄÜ»òÕßÈ¥µôijЩ¹¦ÄÜ¡£ 
ËùÒÔÌØµØÑ°ÇóÈçºÎÉè¼ÆC/SµÄ¼Ü¹¹Ê¹³ÌÐò¸ü¼ÓÃæÏò¶ÔÏó¸ü¼ÓÒ×ÓÚά ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØÍ¼ | ¸ÓICP±¸09004571ºÅ