Here you can find the source of toAsciiString(byte[] bytes)
private static String toAsciiString(byte[] bytes)
//package com.java2s; /*//from www.ja v a 2s.com * Copyright (C) 2014 Dell, Inc. * * 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. */ public class Main { private static String toAsciiString(byte[] bytes) { for (int i = 0; i < bytes.length; i++) { if (bytes[i] < 0) return null; } char[] chars = new char[bytes.length]; for (int i = 0; i < bytes.length; i++) { chars[i] = (char) bytes[i]; } return new String(chars); } private static String toAsciiString(byte[] bytes, int offset, int length) { for (int i = 0; i < length; i++) { if (bytes[offset + i] < 0) return null; } char[] chars = new char[length]; for (int i = 0; i < length; i++) { chars[i] = (char) bytes[offset + i]; } return new String(chars); } }