Java Random String getRandomString(int min, int max)

Description

get Random String

License

Open Source License

Declaration

public static String getRandomString(int min, int max) 

Method Source Code

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

import java.util.Random;

public class Main {
    public static String getRandomString(int min, int max) {
        String newstring = new String();
        Random rand = new Random();
        int i;/* w  ww. j  a  v  a  2s .c om*/
        final char[] chars = { 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i',
                'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't', 'u',
                'v', 'w', 'x', 'y', 'z', 'A', 'B', 'C', 'D', 'E', 'F', 'G',
                'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P', 'Q', 'R', 'S',
                'T', 'U', 'V', 'W', 'X', 'Y', 'Z', '!', '@', '#', '$', '%',
                '^', '&', '*', '(', ')', '_', '-', '=', '+', '{', '}', '[',
                ']', '|', ':', ';', ',', '.', '?', '/', '~', ' ' }; // 79
        // characters
        int strlen = (int) Math.floor(rand.nextDouble() * (max - min + 1));
        strlen += min;
        for (i = 0; i < strlen; i++) {
            char c = chars[(int) Math.floor(rand.nextDouble() * 79)];
            newstring = newstring.concat(String.valueOf(c));
        }
        return newstring;
    }
}

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