Java tutorial
//package com.java2s; /* ******************************************************************************* * BTChip Bitcoin Hardware Wallet Java API * (c) 2014 BTChip - 1BTChip7VfTnrPra5jqci7ejnMguuHogTn * * 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.io.ByteArrayOutputStream; public class Main { public static void writeUint64LE(ByteArrayOutputStream buffer, long value) { buffer.write((byte) (value & 0xff)); buffer.write((byte) ((value >> 8) & 0xff)); buffer.write((byte) ((value >> 16) & 0xff)); buffer.write((byte) ((value >> 24) & 0xff)); buffer.write((byte) ((value >> 32) & 0xff)); buffer.write((byte) ((value >> 40) & 0xff)); buffer.write((byte) ((value >> 48) & 0xff)); buffer.write((byte) ((value >> 56) & 0xff)); } }