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

ÍøÉÏÕÒÁ˸öjavaËæ»úÉú³ÉÃÜÂëµÄ¡£¡£¡£·¢ÉÏÀ´¼Ç¼һÏ¡£

import java.util.Random;
public class test {
/**
* @param args
*/
public static void main(String[] args) {
// TODO Auto-generated method stub
System.out.println(genRandomNum(10));
}
/**
* Éú³ÉËæ¼´ÃÜÂë
* @param pwd_len Éú³ÉµÄÃÜÂëµÄ×ܳ¤¶È
* @return ÃÜÂëµÄ×Ö·û´®
*/
public static String genRandomNum(int pwd_len){
//35ÊÇÒòΪÊý×éÊÇ´Ó0¿ªÊ¼µÄ£¬26¸ö×Öĸ+10¸öÊý×Ö
final int maxNum = 36;
int i; //Éú³ÉµÄËæ»úÊý
int count = 0; //Éú³ÉµÄÃÜÂëµÄ³¤¶È
char[] str = { 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k',
'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w',
'x', 'y', 'z', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9' };

StringBuffer pwd = new StringBuffer("");
Random r = new Random();
while(count < pwd_len){
//Éú³ÉËæ»úÊý£¬È¡¾ø¶ÔÖµ£¬·ÀÖ¹Éú³É¸ºÊý£¬

i = Math.abs(r.nextInt(maxNum)); //Éú³ÉµÄÊý×î´óΪ36-1

if (i >= 0 && i < str.length) {
pwd.append(str[i]);
count ++;
}
}

return pwd.toString();
}
}


Ïà¹ØÎĵµ£º

Java°üµÄ´´½¨ºÍʹÓÃ

°üÊÇJavaÓïÑÔÌṩµÄÒ»ÖÖÇø±ðÀàÃû×ÖÃüÃû¿Õ¼äµÄ»úÖÆ£¬ËüÊÇÀàµÄÒ»ÖÖÎļþ×éÖ¯ºÍ¹ÜÀí·½Ê½¡¢ÊÇÒ»×鹦ÄÜÏàËÆ»òÏà¹ØµÄÀà»ò½Ó¿ÚµÄ¼¯ºÏ¡£Java packageÌṩÁË·ÃÎÊȨÏÞºÍÃüÃûµÄ¹ÜÀí»úÖÆ£¬ËüÊÇJavaÖкܻù´¡È´Óַdz£ÖØÒªµÄÒ»¸ö¸ÅÄî¡£
 
Ò»¡¢°üµÄ×÷ÓÃ
1 °Ñ¹¦ÄÜÏàËÆ»òÏà¹ØµÄÀà»ò½Ó¿Ú×éÖ¯ÔÚͬһ¸ö°üÖУ¬·½±ãÀàµÄ²éÕÒºÍʹÓá£
2 Èçͬ ......

javaÀàµÄÉúÃüÖÜÆÚ

1¡¢ ÀàÐÍ×°ÔØ¡¢Á´½ÓÓë³õʼ»¯
      JavaÐéÄâ»úͨ¹ý×°ÔØ¡¢Á´½ÓºÍ³õʼ»¯Ò»¸öJavaÀàÐÍ£¬Ê¹¸ÃÀàÐÍ¿ÉÒÔ±»ÕýÔÚÔËÐеÄJava³ÌÐòËùʹÓá£ÆäÖУ¬×°ÔؾÍÊǰѶþ½øÖƵÄJavaÀàÐͶÁÈëJavaÐéÄâ»úÖУ¬¶øÁ¬½Ó¾ÍÊǰÑÕâÖÖÒѾ­¶ÁÈëÐéÄâ»úµÄ¶þ½øÖÆÐÎʽµÄÀàÐÍÊý¾ÝºÏ²¢µ½ÐéÄâ»úµÄÔËÐÐ״̬ÖÐÈ¥¡£Á¬½Ó½×¶Î·ÖÁËÈý¸ö²½Ö裺Ñé ......

´«ÖDz¥¿ÍjavaÅàѵ¡ï¡ï¡ï¡ï¡ïѧϰÉú»îƪ ѧϰ¸ÐÊÜ

      À´±±¾©ÒѾ­Êǽü20ÌìÁË£¬Æð³õ¸Õµ½¶ÔÎҵĴò»÷ȷʵ²»Ð¡£¬ºÜÏë»Ø¼Ò µÄ¸Ð¾õ£¬µ«ÊÇÀ´µ½ÁË´«ÖÇ£¬À´µ½ÁËÕâÀÐÄÀï¸Ð¾õºÃ¶àÁË£¬ÈËÉúµØ²»Ê죬È˵ÄÐÄÀïÒ»°ã¶¼ÊǺܹ¶ÀµÄ£¬ÏëÔÚÐÄÀïÕÒ¸öÒÀ¿¿£¬ÕÒ¸öÅóÓÑÄÜÒ»Æð³öÈ¥Íæ£¬ÁÄÌ죬ѧϰ¡£À´µ½Á˱±¾©£¬ÊÇÒ»¸öȫеÄÉú»î·½Ê½£¬Ê²Ã´¶¼Òª¿¿×Ô¼ºÁË£¬³öÃÅÕæµÄºÜÄÑ£¬ÓÈ ......

´«ÖDz¥¿ÍjavaÅàѵ2010Äê4ÔÂ23ÈÕ(hibernate)ѧϰ

½ñÌìÌý¿Î²ÅÖªµÀ×Ô¼º×ÔѧµÄhibernate¿ÉÒÔËãµÃÉÏÊÇһ̣ºýÍ¿£¬ÒòΪ֮ǰ¿´HibernateµÄÊé¿´ÁË¿´¼¸±é¶¼Ã»Óи㶮£¬½ñÌìÌýÁËÒ»ÌìµÄ¿Î£¬ºÜ¶à¶«Î÷¾Í»íÈ»¿ªÀÊ£¬ËùÒÔԤϰҲÊǺÜÖØÒªµÄ£¬ÄÇÅÂÊÇûÓп´¶®£¬µ«ÖÁÉÙÒ²ÓÐÓ¡Ïó¡£ ½ñÌìÉϿεĽø³Ì±È½Ï¿ì£¬ÐìÅà³ÉÀÏʦ½²¿Î£¬ÎÒÖ»ÄÜÓá°Ç¿º·¡±Á½¸ö×ÖÀ´ÐÎÈÝ£¬ÉÏ¿Îʱ¾«Á¦³äÅæ£¬ÓïËٿ죨µ«ÌýµÃºÜÇåÎú£¬¼ ......

java¶þ½øÖÆ,×Ö½ÚÊý×é,×Ö·û,Ê®Áù½øÖÆ,BCD±àÂëת»»

// ÕûÊýµ½×Ö½ÚÊý×éת»»
public static byte[] int2bytes(int n) {
byte[] ab = new byte[4];
ab[0] = (byte) (0xff & n);
ab[1] = (byte) ((0xff00 & n) >> 8);
ab[2] = (byte) ((0xff0000 & n) >> 16);
ab[3] = (byte) ((0xff000000 & n) >> 24);
return ab ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØÍ¼ | ¸ÓICP±¸09004571ºÅ