Here you can find the source of getRandomString(int size)
size
using the default encoding scheme.
Parameter | Description |
---|---|
size | of the string (character count) |
static public String getRandomString(int size)
//package com.java2s; /*//from w w w . jav a2s . c om * Copyright 2009 Joubin Houshyar * * 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 { /** * Random generator used for Util random functions, * instantiated using {@link System#currentTimeMillis()} as seed */ final static Random random = new Random(System.currentTimeMillis()); /** * Generates a random {@link String} of length <code>size</code> using the default * encoding scheme. String content is ASCII characters. * @param size of the string (character count) * @return the generated {@link String} */ static public String getRandomString(int size) { StringBuilder builder = new StringBuilder(size); for (int i = 0; i < size; i++) { char c = (char) (random.nextInt(126 - 33) + 33); builder.append(c); } return builder.toString(); } }