Java Random String getRandomString(int length)

Description

get Random String

License

Apache License

Declaration

@Deprecated
    public static String getRandomString(int length) 

Method Source Code

//package com.java2s;
/*//from  w ww . j a  v  a  2  s . c  o  m
 * Copyright 2015 Agapsys Tecnologia Ltda-ME.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

import java.util.Random;

public class Main {
    @Deprecated
    public static String getRandomString(int length) {
        char[] chars = "abcdefghijklmnopqrstuvwxyz0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ".toCharArray();
        return getRandomString(length, chars);
    }

    @Deprecated
    public static String getRandomString(int length, char[] chars) {
        if (length < 1)
            throw new IllegalArgumentException("Invalid length: " + length);

        if (chars == null || chars.length == 0)
            throw new IllegalArgumentException("Null/Empty chars");

        StringBuilder sb = new StringBuilder();
        Random random = new Random();
        for (int i = 0; i < length; i++) {
            char c = chars[random.nextInt(chars.length)];
            sb.append(c);
        }

        return sb.toString();
    }
}

Related

1. getRandomString(int length)
2. getRandomString(int length)
3. getRandomString(int length)
4. getRandomString(int length)
5. getRandomString(int length)
6. getRandomString(int length)
7. getRandomString(int length, Random rnd)
8. getRandomString(int length, String charset)
9. getRandomString(int min, int max)