What is the difference between Comparable and Comparato…

Comparable is an interface with a compareTo() method used to define the natural order between objects. Classes that implement the Comparable interface can directly call the Collections.sort() method to sort objects.

The Comparator interface is also a type of interface that includes a compare() method used to define a customized ordering between objects. Classes that implement the Comparator interface can create multiple comparators for different sorting needs. When using the Collections.sort() method, you can achieve custom sorting by passing in a Comparator object.

In summary, Comparable is a sorting rule implemented by the object itself, whereas Comparator is a sorting rule implemented externally. The sorting rule defined by Comparable is the object’s natural order, while the sorting rule defined by Comparator is customized according to external requirements.