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();
}
}