creates a random string whose length is the number of characters specified . characters will be chosen from the set of alpha-numeric characters . concode_field_sep Random RANDOM concode_field_sep String random concode_elem_sep String random concode_elem_sep String random concode_elem_sep String random concode_elem_sep String random concode_elem_sep String random concode_elem_sep String random concode_elem_sep String randomAlphabetic concode_elem_sep String randomAscii concode_elem_sep String randomNumeric
String function ( int arg0 ) { return random ( arg0 , true , true ) ; }