ACMÖÐʹÓÃJAVAµÄ½éÉÜ
¸½£º
Chapter I.
JavaµÄÓÅȱµã¸÷ÖÖÊéÉ϶¼ÓУ¬ÕâÀïֻ˵˵ÓÃJava×öACM-ICPCµÄÌص㣺
(1) ×îÃ÷ÏԵĺô¦ÊÇ£¬Ñ§»áJava£¬¿ÉÒԲμÓJava Challenge
(2) ¶ÔÓÚÊìϤC/C++µÄ³ÌÐòÔ±À´Ëµ£¬Java ²¢²»ÄÑѧ£¬ÕÒ±¾Ê飬һÁ½ÖÜÒµÓàʱ¼ä¾Í¿ÉÒԸ㶨ÁË¡£µ±È»£¬ÕâÀïÖ»ÊÇÖ¸Ò»°ã±à³Ì£¬ÏëÊìϤËùÓеÄJava¿â»¹ÊÇÐèҪЩʱ¼äµÄ¡£ÊÂʵÉÏ£¬Java Ö»Ï൱ÓÚC++µÄÒ»¸ö¸Ä½ø°æ£¬ËùÓеÄÓï·¨¶¼¼¸ºõÊÇC++µÄ£¬ºÜÉÙÓб䶯¡£
(3) ÔÚÒ»°ã±ÈÈüÖУ¬Java³ÌÐò»áÓжîÍâµÄʱ¼äºÍ¿Õ¼ä£¬¶øʵ¼ÊÉϾ¹ýʵÑ飬ÔÚÖ´ÐмÆËãÃܼ¯ÈÎÎñµÄʱºòJava²¢²»±ÈC/C++Âý¶àÉÙ£¬Ö»ÊÇIO²Ù×÷½ÏÂý¶øÒÑ¡£
(4) Java ¼òµ¥¶ø¹¦ÄÜÇ¿´ó£¬ÓÐЩ¶«Î÷ÓÃJavaʵÏÖÆðÀ´¸üΪ·½±ã£¬±ÈÈç¸ß¾«¶È¡£
(5) ÓÃJava²»Ò×·¸Ï¸Î¢µÄ´íÎ󣬱ÈÈçC/C++ÖеÄÖ¸Õ룬 “if (n = m) ... ” µÈ
(6) Ä¿Ç°À´¿´EclipseÒѳɻù±¾ÅäÖã¬Ð´Java³ÌÐò·´¶ø±ÈC/C++¸ü·½±ãµ÷ÊÔ¡£ÔÚ¾ßÌ徺ÈüʱҲËã¶àÒ»ÖÖÑ¡Ôñ¡£
(7) ѧ»áJava¶ÔÒÔºó¹¤×÷Óкô¦¡£ÏÖÔÚ¹úÍâºÜ¶àµØ·½»áJavaµÄÈ˱ȻáC/C++µÄÈ˶ࡣ
(8) »áJava¿ÉÒÔʹÄã¿´ÆðÀ´¸üÏñżÌãÀදÎţ£© hoho~
Chapter II.
ÏÂÃæ˵һÏÂACM-ICPC¶ÓÔ±³õÓÃJava±à³ÌËùÓöµ½µÄһЩÎÊÌ⣺
1. »ù±¾ÊäÈëÊä³ö£º
(1) JDK 1.5.0 ÐÂÔöµÄScannerÀàΪÊäÈëÌṩÁËÁ¼ºÃµÄ»ù´¡£¬¼òÖ±¾ÍÊÇΪACM-ICPC¶øÉèµÄ¡£
Ò»°ãÓ÷¨Îª£º
import java.io.*
import java.util.*
public class Main
{
public static void main(String args[])
{
Scanner cin = new Scanner(new BufferedInputStream(System.in));
...
}
}
µ±È»Ò²¿ÉÒÔÖ±½Ó Scanner cin = new Scanner(System.in);
Ö»ÊǼÓBuffer¿ÉÄÜ»á¿ìһЩ
(2)
¶ÁÒ»¸öÕûÊý£º int n = cin.nextInt(); Ï൱ÓÚ scanf("%d", &n); »ò cin >> n;
¶ÁÒ»¸ö×Ö·û´®£ºString s = cin.next(); Ï൱ÓÚ scanf("%s", s); »ò cin >> s;
¶ÁÒ»¸ö¸¡µãÊý£ºdouble t = cin.nextDouble(); Ï൱ÓÚ scanf("%lf", &t); »ò cin >> t;
¶ÁÒ»ÕûÐУº&nbs
Ïà¹ØÎĵµ£º
ListµÄÓ÷¨
List°üÀ¨List½Ó¿ÚÒÔ¼°List½Ó¿ÚµÄËùÓÐʵÏÖÀà¡£ÒòΪList½Ó¿ÚʵÏÖÁËCollection½Ó¿Ú£¬ËùÒÔList½Ó¿ÚÓµÓÐCollection½Ó¿ÚÌṩµÄËùÓг£Ó÷½·¨£¬ÓÖÒòΪListÊÇÁбíÀàÐÍ£¬ËùÒÔList½Ó¿Ú»¹ÌṩÁËһЩÊʺÏÓÚ×ÔÉíµÄ³£Ó÷½·¨£¬Èç±í1Ëùʾ¡£
±í1 List½Ó¿Ú¶¨ÒåµÄ³£Ó÷½·¨¼°¹¦ÄÜ
´Ó±í1¿ÉÒÔ¿´³ö£¬List½Ó¿ÚÌṩµÄÊʺÏÓÚ×ÔÉíµÄ ......
JXL.JAR ²Ù×÷ExcelÎļþ¿ªÔ´°ü
ÕâÀï¼òµ¥½²Ð©ÏîÄ¿ÖÐÓõ½µÄһЩ·½·¨£¡£¨ÏîÄ¿µÄ»·¾³ÊÇStruts2 hibernate3 resin3 £©
// ExcelÎļþ´æ·Å·¾¶
String path = ServletActionContext.getServletContext().getRealPath("")+"userfiles\\train_excel\\text.xls";
// Éú³ÉExcelÎļþ
WritableWorkbook wwb = Workbook.creat ......
1. SSOÐèÇó
µ¥µãµÇ¼£¨Single Sign On, SSO£©ÊÇÆóÒµÓ¦Óü¯³ÉÖÐ×î³£¼ûµÄÐèÇó¡£Ò칹ϵͳ¼äÍùÍù¶¼Óи÷×ÔµÄÓû§¹ÜÀíºÍÉí·ÝÑéÖ¤»úÖÆ£¬Îª
±ÜÃâÓû§ÔÚ½øÐÐϵͳÇл»Ê±Æµ·±ÊäÈëÓû§ÃûºÍÃÜÂ룬Òò´Ë±ØÐëҪʵÏÖµ¥µãµÇ¼¡£
2. SSOÔÀí
˵µ½SSOµÄÔÀí£¬ÏȵÃ˵һ°ãWebÓ¦ÓõÄÉí·ÝÑéÖ¤ÔÀí¡£WebÉí·ÝÑéÖ¤Ö®ËùÒÔÄܳÉΪÎÊÌâÖ÷ÒªÔÚÓÚHTTPÐÒé ......
JavaÈÝÆ÷Àà¿âÖ÷Òª°üº¬Á½ÖÖÀàÐÍCollection(List,Set,Queue)ºÍMap£¬ËüÃǵÄÇø±ðÔÚÓÚÿ¸ö²Û±£´æµÄÔªËظöÊý£¬CollectionÖ»±£´æÒ»¸ö£¬¶øMap±£´æ¼üºÍÖµ¡£
1.µ±Ê¹ÓÃArrays.asList()ʱ£¬Ëü»áÔÚʹÓÃÒ»¸öfinalµÄÊý×é×÷Ϊµ×²ãʵÏÖ£¬Òò´ËÈκÎÉè¼Æµ½¸ü¸ÄÆ䳤¶È´óСµÄ²Ù×÷¶¼½«Å×UnsuportedExceptioÒì³£¡£
2.finalµÄÊý×飬²»Äܸıä´óС£¬µ ......
×÷ΪApplet³ÌÐòµÄÒ»¸öÈëÃÅ£¬ÎÒÃǽñÌì̽ÌÖÒ»ÏÂÈçºÎʵÏÖÒ»¸ö°ë¾¶²»¶ÏÔö´óµÄСÇò¶¯»£¬ÕýÈçÏÂͼËùʾ¡£
Éè¼ÆµÄ¹Ø¼ü˼Ï룺
ÎÒÃÇÐèÒªÉ趨һ¸öСÇòµÄÔ²ÐÄ×ø±ê£¬×îºÃÊÇÔÚ´°¿ÚµÄÖÐÑ룬ȻºóÁîСÇòµÄ°ë¾¶²»¶ÏÔö´ó£¬²»¶ÏµÄÖػ棬ÒÔʵÏÖСÇòµÄÔö´ó¶¯»¡£
Éè¼Æ·½°¸£º
&n ......