create Random Authentication code - Java java.util

Java examples for java.util:Random Int

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Description

create Random Authentication code

Demo Code


//package com.java2s;
import java.util.Random;

public class Main {
    public static void main(String[] argv) throws Exception {
        System.out.println(createAuthcode());
    }//w w w.  ja  va 2  s  . c o  m

    public static final int AUTHCODE_LENGTH = 5;

    public static String createAuthcode() {
        Random random = new Random();
        StringBuffer authcode = new StringBuffer();
        for (int i = 0; i < AUTHCODE_LENGTH; i++) {
            authcode.append(random.nextInt(10));
        }
        return authcode.toString();
    }
}

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