5.ArrayList,15points

Create a static method calledflip2that takes anArrayListofStringsas a parameter and thenflipseach successivepair ofvalues in the list.For example, suppose that a variable calledliststores the following sequence of values:

["aa","bb","cc","DDD","happy","snow"]

and we make the following call:

flip(list);

Afterwards the list should store the following sequence of values:

["bb","aa","DDD","cc","snow","happy"]

If the list has extra values that are not part of apair, those values are unchanged.For example, if the list had instead stored:

["aa","bb","cc","DDD","happy","snow","hometown"]

The result would have been:

["bb","aa","DDD","cc","snow","happy","hometown"]