returns true if a and b are equal , including if they are both null . note : in platform versions 1.1 and earlier , this method only worked well if both the arguments were instances of string . concode_field_sep PlaceHolder placeHolder concode_field_sep boolean isEmpty concode_elem_sep String join
boolean function ( CharSequence arg0 , CharSequence arg1 ) { return ( arg0 == arg1 ) || ( arg0 != null && arg0 . equals ( arg1 ) ) ; }