Here you can find the source of long2Bytes(long l, byte[] target, int offset)
public static int long2Bytes(long l, byte[] target, int offset)
//package com.java2s; /* Copyright 2009 - 2010 The Stajistics Project * * 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./*from w w w. j av a2s .c om*/ */ public class Main { /** * returns the next index */ public static int long2Bytes(long l, byte[] target, int offset) { for (int i = offset + 7; i >= offset; i--) { target[i] = (byte) (l & 0xFF); l >>= 8; } return offset + 8; } }