Java Multi-Level Comparator

Question

I am working on a problem where I must take these \"Song-artist pairs\" from an input file and sort alphabetically. The guidelines to the sorting goes like so:

• Sh

Answer 1

Let's say the class you said you managed to create is called SongArtistPair and it has a method called effectiveAuthor()which returns the author's name without the The, and a method getSongName() which returns the name of the song. You can use this pattern offered by the Java 8 Comparator API.

Comparator comp = Comparator.comparing(SongArtistPair::effectiveAuthor).thenComparing(SongArtistPair::getSongName);

After that, just use that comp as normal

Check Comparator API docs for more cool stuff HERE