Java I/O - 如何将Bytes添加到ByteBuffer中

  


import java.nio.ByteBuffer;

public class Main {
  public static void main(String[] argv) throws Exception {
    ByteBuffer bbuf = ByteBuffer.allocate(10);
    int capacity = bbuf.capacity(); // 10
    System.out.println(capacity);
    bbuf.put((byte) 0xFF); 
    bbuf.position(5);
    bbuf.put((byte) 0xFF);
    int pos = bbuf.position(); 
    int rem = bbuf.remaining();
    bbuf.limit(7); 
    bbuf.rewind(); 
  }
}