e165. setting the byte ordering for a bytebuffer.txt

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By default, the byte ordering for a ByteBuffer is ByteOrder.BIG_ENDIAN. This means that if you put a multibyte value into the buffer, the most significant byte is written out first. With LITTLE_ENDIAN, the least significant byte is written out first. 
    // Obtain a ByteBuffer; see also e158 Creating a ByteBuffer
    ByteBuffer buf = ByteBuffer.allocate(10);
    
    // Get default byte ordering
    ByteOrder order = buf.order(); // ByteOrder.BIG_ENDIAN
    
    // Put a multibyte value
    buf.putShort(0, (short)123);
    buf.get(0); // 0
    buf.get(1); // 123
    
    // Set to little endian
    buf.order(ByteOrder.LITTLE_ENDIAN);
    
    // Put a multibyte value
    buf.putShort(0, (short)123);
    buf.get(0); // 123
    buf.get(1); // 0