Java Random String generateRandomString(int size)

Description

generate Random String

License

Open Source License

Declaration

public static String generateRandomString(int size) 

Method Source Code

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

import java.util.Random;

public class Main {
    private static String random_str = "ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789";

    public static String generateRandomString(int size) {
        String random = new String();
        Random rand = new Random();

        for (int i = 0; i < size; i++) {
            int random_nbr = rand.nextInt(random_str.length());
            random += (rand.nextBoolean()) ? random_str.charAt(random_nbr)
                    : Character.toLowerCase(random.charAt(random_nbr));
        }//from  ww w  .j  a v a 2 s. c  om

        return random;
    }
}

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