public WrappedByteBuffer putString(String v,Charset cs){
  java.nio.ByteBuffer strBuf=cs.encode(v);
  _autoExpand(strBuf.limit());
  _buf.put(strBuf);
  return this;
}

public WrappedByteBuffer putString ( String v , Charset cs ) { java . nio . ByteBuffer strBuf = cs . encode ( v ) ; _autoExpand ( strBuf . limit ( ) ) ; _buf . put ( strBuf ) ; return this ; }
puts a string into the buffer at the current position , using the character set to encode the string as bytes .
