Difference Between Collections.sort() and Arrays.sort() ?

Difference Between Collections.sort() and Arrays.sort() ?

Let us look at the basic differences between Collections.sort() and Arrays.sort().

Both the methods are used to sort a group of elements, but which method to use should be decided as per the requirement.

Below are couple of difference between these two methods which gives a clear understanding of  "when /how to implement"

Collections.sort()	Arrays.sort()
Collections.sort operates on a List	Arrays.sort operates on an array
Use Collections.sort() if you're dealing with something that implements the Collection interface - example: ArrayList	Use Arrays.sort() if you're dealing with an Array
Collections.sort() has a input as List so it does a translation of List to array and vice versa which is an additional step while sorting. So this should be used when you are trying to sort a list.	Arrays.sort is for arrays so the sorting is done directly on the array. So clearly it should be used when you have a array available with you and you want to sort it.