Write a method named flipLines that accepts as its parameter a Scanner for an input file and that writes to the console the same file's contents with successive pairs of lines reversed in order. For example, if the input file contains the following text:

Twas brillig and the slithy toves

did gyre and gimble in the wabe.

All mimsey were the borogroves,

and the mome raths outgrabe.

"Beware the Jabberwock, my son,

the jaws that bite, the claws that catch,

Beware the JubJub bird and shun

the frumious bandersnatch."