Endians.java

package org.javacore.nio;

import java.nio.ByteBuffer;
import java.nio.ByteOrder;
import java.util.Arrays;

/*
 * Copyright [2015] [Jeff Lee]
 *
 * 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.
 */

/**
 * @author Jeff Lee
 * @since 2015-10-13 20:40:00
 * ByteBuffer中字节存储次序
 */
public class Endians {
    public static void main(String[] args) {
        // 创建12个字节的字节缓冲区
        ByteBuffer bb = ByteBuffer.wrap(new byte[12]);
        // 存入字符串
        bb.asCharBuffer().put("abdcef");
        System.out.println(Arrays.toString(bb.array()));

        // 反转缓冲区
        bb.rewind();
        // 设置字节存储次序
        bb.order(ByteOrder.BIG_ENDIAN);
        bb.asCharBuffer().put("abcdef");
        System.out.println(Arrays.toString(bb.array()));

        // 反转缓冲区
        bb.rewind();
        // 设置字节存储次序
        bb.order(ByteOrder.LITTLE_ENDIAN);
        bb.asCharBuffer().put("abcdef");
        System.out.println(Arrays.toString(bb.array()));
    }
}