public String toChars(int[] indices){
  StringBuilder s=new StringBuilder(indices.length);
  for (int i=0; i < indices.length; i++)   s.append(toChar(indices[i]));
  return s.toString();
}

public String toChars ( int [ ] indices ) { StringBuilder s = new StringBuilder ( indices . length ) ; for ( int i = 0 ; i < indices . length ; i ++ ) s . append ( toChar ( indices [ i ] ) ) ; return s . toString ( ) ; }
returns the characters corresponding to the argument indices .
