Generate a random N-digit/letter password

Prepared by: Xu jianxiang (netpirate@gmail.com)

Time:

From: http://www.anymobile.org

 

1 package oeg. anymobile. util;
2
3 public class RandomStringUtils
4 {
5 /**
6 * obtain random strings
7 * @ param random
8 * @ param len Length
9 * @ return (int) Random Number
10 */
11 public String getRandomString (int random, int len)
12 {
13 java. util. Random rd = new java. util. Random (random );
14 StringBuffer sb = new StringBuffer ();
15 int rdGet; // obtain a random number.
16 char ch;
17
18 for (int I = 0; I <len; I ++)
19 {
20 rdget = math. Abs (RD. nextint () % 10 + 48; // generate a random number from 48 to 57 (key value of 0-9)
21 // rdget = math. Abs (RD. nextint () % 26 + 97; // generate a random number from 97 to 122 (key value of A-Z)
22 CH = (char) rdget;
23 sb. append (CH );
24}
25
26 return sb. tostring ();
27}
28
29 public static void main (string [] ARGs)
30 {
31 system. Out. println (DAO. getrandomstring (51200000, 6 ));
32}
33}

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