Java tutorial
//package com.java2s; /** * Copyright 2008 - 2011 * * 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. * * @project loonframework * @author chenpeng * @emailceponline@yahoo.com.cn * @version 0.1 */ import java.nio.ByteBuffer; import java.nio.ByteOrder; public class Main { public static ByteBuffer createByteBuffer(byte... bytes) { ByteBuffer bb = createByteBuffer(bytes.length).put(bytes); bb.position(0); return bb; } public static ByteBuffer createByteBuffer(final int size) { final ByteBuffer buf = ByteBuffer.allocateDirect(size).order(ByteOrder.nativeOrder()); buf.clear(); return buf; } public static ByteBuffer createByteBuffer(ByteBuffer buf, final int size) { if (buf != null && buf.limit() == size) { buf.rewind(); return buf; } buf = createByteBuffer(size); return buf; } }