Question

When destroy() method of a filter is called?

(a) The destroy() method is called only once at the end of the life cycle of a filter

(b) The destroy() method is called after the filter has executed doFilter method

(c) The destroy() method is called only once at the begining of the life cycle of a filter

(d) The destroyer() method is called after the filter has executed

Answer 1

Right choice is (a) The destroy() method is called only once at the end of the life cycle of a filter

Easiest explanation: destroy() is an end of life cycle method so it is called at the end of life cycle.