Here you can find the source of dump(ByteBuffer buff, int size, boolean asBits)
public static final String dump(ByteBuffer buff, int size, boolean asBits)
//package com.java2s; /*// ww w. java 2 s . com * JBoss, Home of Professional Open Source * Copyright 2011, Red Hat, Inc. and individual contributors * by the @authors tag. See the copyright.txt in the distribution for a * full listing of individual contributors. * * This is free software; you can redistribute it and/or modify it * under the terms of the GNU Lesser General Public License as * published by the Free Software Foundation; either version 2.1 of * the License, or (at your option) any later version. * * This software is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this software; if not, write to the Free * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA * 02110-1301 USA, or see the FSF site: http://www.fsf.org. */ import java.nio.ByteBuffer; public class Main { public static final String dump(ByteBuffer buff, int size, boolean asBits) { return dump(buff.array(), size, asBits); } public static final String dump(byte[] buff, int size, boolean asBits) { String s = ""; for (int i = 0; i < size; i++) { String ss = null; if (!asBits) { ss = Integer.toHexString(buff[i] & 0xff); } else { ss = Integer.toBinaryString(buff[i] & 0xff); } ss = fillInZeroPrefix(ss, asBits); s += " " + ss; } return s; } public static final String dump(int[] buff, int size) { String s = ""; for (int i = 0; i < size; i++) { String ss = Integer.toHexString(buff[i] & 0xff); if (ss.length() == 1) { ss = "0" + ss; } s += " " + ss; } return s; } public static final String fillInZeroPrefix(String ss, boolean asBits) { if (asBits) { if (ss.length() < 8) { for (int j = ss.length(); j < 8; j++) { ss = "0" + ss; } } } else { // hex if (ss.length() < 2) { ss = "0" + ss; } } return ss; } }