Java Random String getRandomString(int size)

Description

get Random String

License

Apache License

Declaration

public static String getRandomString(int size) 

Method Source Code

//package com.java2s;
/*//  w w  w.j a  v  a  2  s. co  m
 * Copyright 2016 Vincenzo Micelli
 *
 * 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 {
    public static String getRandomString(int size) {
        String randomString;

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

        return randomString;
    }
}

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