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

JAVA³õѧÕß Å׳öÒ쳣ѡÔñÌâ - Java / Java SE


 Consider the following Java program segment. 

import java.io.*;

public class SomeClass{

  public void x() {

  throw new RuntimeException("Exception from x");
  }
  
  public void y(){

  throw new IOException("Exception from y");
  }
}
Which of the following is true concerning the definitions for the methods x and y? 
 
 

 (a) Neither x nor y has a legal definition.
 (b) Both x and y have legal definitions.
 (c) x has an illegal definition, but y has a legal definition.
 (d) x has a legal definition, but y has an illegal definition.  


²»»á×ö¡­¡­´óÏÀ°ïæ~£¡Ð»Ð»~£¡

ÎÒÖ»ÖªµÀ
public void y(){

  throw new IOException("Exception from y");
  }
ÕâÊÇ´íµÄ
ÎÒ²»ÖªµÀÑóÎÄ

ÒýÓÃ
ÎÒÖ»ÖªµÀ
public void y(){

throw new IOException("Exception from y");
}
ÕâÊÇ´íµÄ
ÎÒ²»ÖªµÀÑóÎÄ

àÅàÅ£¬´ð°¸ÊÇxÊǺϷ¨µÄ£¬yÊDz»ºÏ·¨µÄ£¬ÎªÊ²Ã´Ñ½£¿

Ñ¡D£¬RuntimeException²»ÐèÒªÒì³£ÉùÃ÷£¬IOExceptionÐèÒª
ËùÒÔyÓ¦¸ÃÉùÃ÷Ϊpublic void y() throws IOException

ÎÒÑ¡C£¬²»Öª¶Ô´í£¬Çë¸ßÊÖÖ¸µã£¡

´ð°¸ÊÇD£¬ÒòΪxÅ×µÄÊÇruntimeµÄexception£¬¸ÄÒì³£²»catchÒ²ÊÇ¿ÉÒÔµÎ


Ïà¹ØÎÊ´ð£º

JSP ½ÓÊÕ FORM Ìá½» - Java / Web ¿ª·¢

Ò»¸öJSPÒ³Ãæ½ÓÊÕÆäËûÒ³ÃæÌá½»¹ýÀ´µÄFORM±íµ¥£¬µ«ÊÇÒªÇóÖ»½ÓÊÕµ±Ç°Õ¾µã¼°Æä×ÓÕ¾µãÌá½»¹ýÀ´µÄFORM±íµ¥£¬ÆäËûÕ¾µãÌá½»¹ýÀ´µÄ±íµ¥²»½ÓÊÕ£¬Õâ¸öÔõôÉèÖã¿
ÓùýÂËÆ÷
filter
½«µ±Ç°Õ¾µã¼°Æä×ÓÕ¾µã·ÅÒ»¸öĿ¼ 
È» ......

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 ......

¹ØÓÚAJAXºÍJSPµÄһЩСÎÊÌâ¡« - Java / Web ¿ª·¢

ÎÒJSPµÄÒ³ÃæÊÇ£º
<%@ page language="java" contentType="text/html; charset=gb2312"
  %>
<script>
function Save(){
xmlHttp=GetXmlHttpObject()
if(xmlHttp==nul ......

HTML±êÇ©µ×²ãµÄʵÏÖÔ­Àí¡¢»úÖÆ - Java / Java SE

ΪʲôHTMLÒÔ¼°Ò»Ð©ÆäËü±êÇ©»áÏÔÊ¾Ò»Ð©ÌØ¶¨±íÏÖÐÎÊ½ÄØ£¿ÈçHTMLÖеĻ»ÐбêÇ©<BR/>ÔڵײãÊÇÔõÑùʵÏÖµÄÄØ£¿ÏÖʵµÄÔ­ÀíÊÇÊ²Ã´ÄØ
È¥W3C¹Ù·½ÍøÕ¾ÉÏ£¬¿´¿´°É£¡ÎÒÏëÒ»¿´Äã¾ÍÃ÷°×ÁË

ÎҲºͱàÒëÔ­ÀíÓйأ¬ä¯ÀÀÆ÷Àï¿É ......

Çó½ÌJSPÏîÄ¿ÖÐÔËÓÃÄ£°åµÄ¼¼Êõ - Java / Web ¿ª·¢

ÇëÎʸ÷λ¸ç¸ç½ã½ã£¬ÈçºÎÔËÓÃÏֳɵÄÄ£°åÀ´ÖÆ×÷ƯÁÁµÄJSPÍøÒ³Ñ½,»ØÕßÓзÖ!
×Ô¼º¶¥Ï£¬×ÜÓиßÊÖ°É,ÆÚ´ýÖÐ......


Èç¹ûÖ±½ÓÒýÓýøÈ¥

¿ÉÒÔÖ±½ÓÓÃjspµÄÖ¸ÁҲ¿ÉÒÔÓÃfreemarkÒýÓ㬼ǵøø·Ö

лл¸÷λÁË£¬¿´À´Î ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØÍ¼ | ¸ÓICP±¸09004571ºÅ