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

java ÃæÊÔÌâ59µÀ£¨º¬²Î¿¼´ð°¸£©


Java
»ù´¡·½Ãæ
:
 
1
¡¢×÷ÓÃÓò
public,private,protected,
ÒÔ¼°²»Ð´Ê±µÄÇø±ð
´ð£º
Çø±ðÈçÏ£º
×÷ÓÃÓò
           
µ±Ç°Àà
       
ͬһ
package  
×ÓËïÀà
       
ÆäËû
package
public            √              √                  √             √
protected        √              √                  √             ×
friendly          √              √                   ×            ×
private           √              ×                   ×            ×
²»Ð´Ê±Ä¬ÈÏΪ
friendly
2
¡¢
Anonymous Inner Class (
ÄäÃûÄÚ²¿Àà

ÊÇ·ñ¿ÉÒÔ
extends(
¼Ì³Ð
)
ÆäËüÀ࣬ÊÇ·ñ¿ÉÒÔ
implements(
ʵÏÖ
)interface(
½Ó¿Ú
)
´ð£º
ÄäÃûµÄÄÚ²¿À


Ïà¹ØÎĵµ£º

javaÖÐʹÓÃibatisÀ´µ÷Óô洢¹ý³Ì(ÏÂ)

3.3 ÓαêÑ­»·×î¼Ñ²ßÂÔ
ÎÒÃÇÔÚ½øÐÐPL/SQL±à³Ìʱ£¬¾­³£ÐèҪѭ»·¶ÁÈ¡½á¹û¼¯µÄÊý¾Ý¡£½øÐÐÖðÐд¦Àí£¬Õâ¸ö¹ý³Ì¾ÍÐèÒª¶ÔÓÎ±ê½øÐÐÑ­»·¡£¶ÔÓÎ±ê½øÐÐÑ­»·µÄ·½·¨ÓжàÖÖ£¬ÎÒÃÇÔÚ´ËÒ»Ò»·ÖÎö¡£
create or replace procedure proccycle(p varchar2)   
as   
cursor c_postype is select pos_type, description ......

JAVA ´úÀíģʽ

¶¯Ì¬´úÀí£º
public interface Qingke {
void qk();
}
public class dsz implements Qingke{
 
 public void qk() {
  System.out.print("dsz qk");
 }
}
public class Secretary implements InvocationHandler {
 private Object pro;
 private dsz dsz;
 public Obj ......

JAVAÔËÐл·¾³ÅäÖÃ

Èç¹ûÒªÔËÐÐjava³ÌÐò¾Í±ØÐë°²×°JRE£¨Java Runtime Environment)
Èç¹ûÒª¿ª·¢java³ÌÐò¾Í±ØÐë°²×°JDK£¨Java Develope Kit)
£¬×¢ÒâJDKÖаüÀ¨ÁËJRE¡£
°²×°Íê³Éºó£¬ÐèÒªÐÞ¸Äϵͳ»·¾³±äÁ¿PATH·½·¨£¬²ÅÄÜʹϵͳ֪µÀµ½ÄÄÀïÈ¥ÕÒjavacµÈÏà¹Ø±àÒëÐèÒªµÄÃüÁ·½·¨ÈçÏ£º
1¡¢ÓÒ¼üµ¥»÷ÎҵĵçÄÔ£¬Ñ¡‘ÊôÐÔ’²Ëµ¥£¬ÔÚµ¯³öµÄ¶Ô» ......

JAVA WEBѧϰ±Ê¼Ç(ËÄ)£­Servlet¹ýÂËÆ÷

Ò»¡¢Servlet¹ýÂËÆ÷µÄ¸ÅÄ
***************************************************************************************
Servlet¹ýÂËÆ÷ÊÇÔÚJava Servlet¹æ·¶2.3Öж¨ÒåµÄ£¬ËüÄܹ»¶ÔServletÈÝÆ÷µÄÇëÇóºÍÏìÓ¦¶ÔÏó½øÐмì²éºÍÐ޸ġ£¡¡¡¡¡¡
Servlet¹ýÂËÆ÷±¾Éí²¢²»²úÉúÇëÇóºÍÏìÓ¦¶ÔÏó£¬ËüÖ»ÄÜÌṩ¹ýÂË×÷Óá£Servlet¹ýÆÚÄÜ ......

һЩ³£¼ûJavaÒì³£¹éÀà(¶þ)

ËãÊõÒì³£ÀࣺArithmeticExecption
¡¡¡¡¿ÕÖ¸ÕëÒì³£ÀࣺNullPointerException
¡¡¡¡ÀàÐÍÇ¿ÖÆ×ª»»Òì³££ºClassCastException
¡¡¡¡Êý×鸺ϱêÒì³££ºNegativeArrayException
¡¡¡¡Êý×éϱêÔ½½çÒì³££ºArrayIndexOutOfBoundsException
¡¡¡¡Î¥±³°²È«Ô­ÔòÒì³££ºSecturityException
¡¡¡¡ÎļþÒѽáÊøÒì³££ºEOFException
¡¡¡¡ÎļþÎ´Õ ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØÍ¼ | ¸ÓICP±¸09004571ºÅ