question: public String ( byte [ ] bytes , int off , int len ) { this ( bytesToChars ( bytes , off , len , "UTF-8" ) ) ; }
target:  Construct a new String by converting the specified subarray of bytes using the platform's default character encoding. The length of the new String is a function of the encoding, and hence may not be equal to the length of the subarray. bytes - The bytes to be converted into charactersoff - Index of the first byte to convertlen - Number of bytes to convert JDK1.1