java.lang.NoSuchMethodError: No interface method sort(Ljava/util/Comparator;) exception in sorting arraylist android

Question

I\'m trying to sort an ArrayList in Java in Android app but I\'m getting this weird exception.

Code:

eventsList.sort(new Comparator<         


        

Answer 1

ArrayList.sort() method was added later that's why its not working. We can update java version (1.8) or we can use below method.

Collections.sort(eventList, new Comparator() {
        @Override
        public int compare(Event event, Event t1) {
            return event.getEventStartDate().compareTo(t1.getEventStartDate());
        }
});