What are the different methods of sorting in a Java list?

In Java, there are several methods available for sorting lists.

1. By using the Collections.sort() method, the list can be sorted using the default comparator. By default, it will use the natural ordering of the elements (if they implement the Comparable interface). If custom objects need to be sorted, the natural ordering of the elements can be defined by implementing the Comparable interface.
2. By using the Comparator interface, you can define a custom comparator and pass it to the Collections.sort() method. This allows you to sort elements based on specific criteria without modifying the element class.
3. With the introduction of Java 8, a new List interface method, sort(), was added. This method, similar to Comparator, allows for sorting a list by accepting a comparator. Unlike Collections.sort(), this method performs an in-place sorting directly on the list and is a default method, eliminating the need for the Collections class.

These methods can all be used to sort Java lists, the specific method used depends on personal preferences and practical needs.