Java Random String getRandomString()

Description

get Random String

License

Open Source License

Declaration

public static String getRandomString() 

Method Source Code

//package com.java2s;
//License from project: Open Source License 

import java.util.Random;

public class Main {
    private static final String CHAR_LIST = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ";

    public static String getRandomString() {
        StringBuffer randStr = new StringBuffer();
        for (int i = 0; i < 3; i++) {
            int number = getRandomNumber();
            char ch = CHAR_LIST.charAt(number);
            randStr.append(ch);/*from ww w .j  ava2  s  .  co m*/
        }
        return randStr.toString();
    }

    public static int getRandomNumber() {
        int randomInt = 0;
        Random randomGenerator = new Random();
        randomInt = randomGenerator.nextInt(CHAR_LIST.length());
        if (randomInt - 1 == -1) {
            return randomInt;
        } else {
            return randomInt - 1;
        }
    }
}

Related

1. getRandomString()
2. getRandomString()
3. getRandomString()
4. getRandomString()
5. getRandomString()
6. getRandomString()
7. getRandomString()
8. getRandomString()
9. getRandomString(final int len)