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

¡¶JavaÃæÏò¶ÔÏó±à³Ì¡·—Êý×éµÄÏà¹ØÊÂÏî


1.ÉùÃ÷Êý×éÒýÓñäÁ¿Ê±²»ÄÜÖ¸¶¨Êý×éµÄ³¤¶È¡£È磺int x[1];Õâ¾ä»°·Ç·¨¡£
2.Êý×é¶ÔÏóµÄ´´½¨£¬ÀýÈ磺
int [] scores = new int[100];
Ê×ÏÈÔÚ¶ÑÖзÖÅäÄÚ´æ¿Õ¼ä£¬ÉÏÊöµÄ¾ÍÊÇ400¸ö×Ö½Ú£¬È»ºó¾Í¸øÆä¸³Ä¬ÈÏÖµ£¬¸÷¸öÊý¾ÝÀàÐ͵ÄĬÈÏÖµ²»Í¬£¬intΪ0.
3.·µ»ØÊý×é¶ÔÏóµÄÒýÓãº
int [] x =new int [10]; <=> int size = 10; int [] x= new int[size];
×¢£ºa.main·½·¨ÈôûÓÐÊäÈë²ÎÊýÔòargs²»ÊÇnull£¬¶øÊÇÒ»¸ö³¤¶ÈΪ0µÄÊý×é¡£
      b.Êý×éµÄ³¤¶ÈÔÚ½¨Á¢Êǹ̶¨£¬µ«ÊÇÊý×é±äÁ¿¿ÉÒԸıäÆäÒýÓõĶÔÏó¡£
4.³õʼ»¯£º
int [] x =new int[]{1,2,3,4};
×¢Òâ:ÈçϵÄÊÇ·Ç·¨µÄ£¬int [] x =new int[4]{1,2,3,4};
5.ÅжÏÊý×éµÄÀàÐÍ£º
ÓÉÓÚJavaÊý×é¼Ì³ÐÁËobject£¬ËùÒÔinstanceof²Ù×÷¿ÉÒÔÖ§³Ö¡£
6.new char[0]Ϊ³¤¶ÈΪ0µÄÊý×飬ÈôҪʹÓÃnull´úÌæ×÷Ϊijһ¸ö·½·¨µÄ·µ»ØÖµÊ±ÔòÔÚ±éÀú¸ÃÊý×éǰÐèÒªÅжÏÊDz»ÊÇnull£¬ËùÒÔÔÚ·µ»ØÊý×éµÄÄÚÈÝΪ¿Õʱ£¬Ò»°ã·µ»Ø³¤¶ÈΪ0µÄÊý×é¸üÄÜ»¯¼ò´úÂë¡£
7.systemÖÐÌṩÁËarraycopyµÄ¾²Ì¬·½·¨£¬ÓÃÓÚÊý×é¶Ô¿½¡£
8.Êý×éµÄʵÓÃÀࣺArrays
ÓÃÓÚ²Ù×ÝÊý×飬ÌṩÁËһϵÁо²Ì¬·½·¨¡£×¢ÒâÔÚbinarySearch()·½·¨ÖбØÐë±£Ö¤Êý×éÖеÄÔªËØÒѾ­°´ÕÕÉýÐòÅÅÐò£¨Ê¹ÓÃsort·½·¨¼´¿É£©£¬²ÅÄܵõ½ÕýÈ·µÄ½á¹û£¬Õâ¸ö·½·¨»á½«ÔªËصĶþ½øÖÆÐòÁкÍÊý¾ÝµÄ¶þ½øÖÆÐòÁнøÐбȽϡ£
±¾ÎÄÀ´×ÔCSDN²©¿Í£¬×ªÔØÇë±êÃ÷³ö´¦£ºhttp://blog.csdn.net/gnuhpc/archive/2009/10/19/4697495.aspx


Ïà¹ØÎĵµ£º

´¿Java¶ÁÈ¡¡¢ÏÔʾ¡¢×ª»»wordÎĵµ(97~2007)¡¢htmlÎĵµ

´¿Java¶ÁÈ¡¡¢ÏÔʾ¡¢×ª»»wordÎĵµ(97~2007)¡¢htmlÎĵµ
ÏÂÔØ³ÌÐò¿â
http://hgsqldoc.appspot.com/lib/hg.jar
Ö÷³ÌÐò¿â£¨±ØÐ룩
http://hgsqldoc.appspot.com/lib/poi.jar
½âÎödoc¸ñʽ
http://hgsqldoc.appspot.com/lib/itext.jar
Êä³öpdfºÍrtf
http://hgsqldoc.appspot.com/lib/fgio.jar
Êä³ösvg¡¢swf¡¢ps¡¢emf
¶ÁÈ ......

JavaÈÕÆÚ´¦Àíº¯Êý

/*
* ´´½¨ÈÕÆÚ 2007-03-14
*
* ¹¦ÄÜ   È¡ÈÕÆÚʱ¼ä¹¤¾ß
*
*/
package com.util;

import java
.text.ParseException;
import java
.text.SimpleDateFormat;
import java
.util.Date;
import java
.util.Calendar;
import java
.util.GregorianCalendar;

/**
* ˵Ã÷:   &nbs ......

java»ù´¡ÖªÊ¶ÈýÊ®¶þ¼Æ


      µÚÒ»£¬Ì¸Ì¸final£¬ finally£¬ finalizeµÄÇø±ð¡£
¡¡¡¡final ÓÃÓÚÉùÃ÷ÊôÐÔ£¬·½·¨ºÍÀ࣬·Ö±ð±íʾÊôÐÔ²»¿É±ä£¬·½·¨²»¿É¸²¸Ç£¬À಻¿É¼Ì³Ð¡£finallyÊÇÒì³£´¦ÀíÓï¾ä½á¹¹µÄÒ»²¿·Ö£¬±íʾ×ÜÊÇÖ´ÐС£finalizeÊÇObjectÀàµÄÒ»¸ö·½·¨£¬ÔÚÀ¬»øÊÕ¼¯Æ÷Ö´ÐеÄʱºò»áµ÷Óñ»»ØÊÕ¶ÔÏóµÄ´Ë·½·¨£¬¿ÉÒÔ¸²¸Ç ......

javaΪʲôÐèÒª³Ö¾Ã»¯£¿

¶ÔÏóÖ»ÄÜ´æÔÚÓÚÄÚ´æÖÐ £¬¶øÄÚ´æÖв»ÄÜÓÀ¾Ã±£´æÊý¾Ý¡£Èç¹ûÒªÓÀ¾Ã±£´æ¶ÔÏóµÄ״̬£¬ÐèÒª½øÐжÔÏóµÄ³Ö¾Ã»¯£¬¼´°Ñ¶ÔÏó´æ´¢µ½×¨ÃŵÄÊý¾Ý´æ´¢¿âÖРĿǰ£¬¹ØÏµÊý¾Ý¿âȽȽÊÇʹÓÃ×î¹ã·ºµÄÊý¾Ý´æ´¢¿â¡£¹ØÏµÊý¾Ý¿âÖдæ·ÅµÄÊǹØÏµÊý¾Ý£¬ËüÊÇ·ÇÃæÏò¶ÔÏóµÄ¡£
³Ö¾Ã»¯Êǽ«JavaÐéÄâ»ú¶ÔÏó³Ö¾Ã±£´æ£¬¶ø²»Êǽ«Êý¾Ý¿âÓ³ÉäΪ¶ÔÏó£¬Í¨³£Êý¾ÝµÄ´æ´¢ ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØÍ¼ | ¸ÓICP±¸09004571ºÅ