Here you can find the source of toBinaryText(StringBuffer buf)
public static String toBinaryText(StringBuffer buf)
//package com.java2s; /**//ww w.j a va 2s . c o m * BlueCove - Java library for Bluetooth * Copyright (C) 2006-2009 Vlad Skarzhevskyy * * Licensed to the Apache Software Foundation (ASF) under one * or more contributor license agreements. See the NOTICE file * distributed with this work for additional information * regarding copyright ownership. The ASF licenses this file * to you 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. * * @author vlads * @version $Id$ */ public class Main { public static String toBinaryText(StringBuffer buf) { boolean bufHasBinary = false; int len = buf.length(); for (int i = 0; i < len; i++) { if (buf.charAt(i) < ' ') { bufHasBinary = true; break; } } if (bufHasBinary) { StringBuffer formatedDataBuf = new StringBuffer(); for (int k = 0; k < len; k++) { formatedDataBuf.append(printable(buf.charAt(k))); } formatedDataBuf.append(" 0x["); for (int k = 0; k < len; k++) { formatedDataBuf.append(toHex00String(buf.charAt(k))) .append(' '); } formatedDataBuf.append("]"); buf = formatedDataBuf; } return buf.toString(); } public static char printable(char c) { if (c < ' ') { return ' '; } else { return c; } } public static String toHex00String(int c) { String s = Integer.toHexString(c); if (s.length() == 1) { return "0" + s; } else { return s; } } }