get Random String from char list - Android java.util

Android examples for java.util:Random String

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Description

get Random String from char list

Demo Code



import java.security.SecureRandom;

public class StringUtils {
    final static String CHARS = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789";


    public static String getRandomString(int cnt) {
        SecureRandom rnd = new SecureRandom();
        StringBuffer buf = new StringBuffer();
        for (int i = 0; i < cnt; i++) {
            int val = rnd.nextInt(CHARS.length());
            buf.append(CHARS.charAt(val));
        }//from   w  ww .j a  va 2 s .  c  om
        return buf.toString();
    }
}

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