HackerRank Interview Prep - Problem 17: Sorting:Comparator смотреть онлайн

Hello, my name is Brian Dyck, I am a full-time software engineer and a Computer Science graduate walking through HackerRank problems for new and old programmers alike. My goal is to help programmers build up skills and not just see the solutions to problems, but to learn how to think through the problems. Many new videos to come, so stay tuned!Hello, my name is Brian Dyck, I am a full-time software engineer and a Computer Science graduate walking through HackerRank problems for new and old programmers alike. My goal is to help programmers build up skills and not just see the solutions to problems, but to learn how to think through the problems. Many new videos to come, so stay tuned!

Comparators are used to compare two objects. In this challenge, you'll create a comparator and use it to sort an array. The Player class is provided in the editor below. It has two fields:

: a string.
: an integer.
Given an array of Player objects, write a comparator that sorts them in order of decreasing score. If or more players have the same score, sort those players alphabetically ascending by name. To do this, you must create a Checker class that implements the Comparator interface, then write an int compare(Player a, Player b) method implementing the Comparator.compare(T o1, T o2) method. In short, when sorting in ascending order, a comparator function returns if , if , and if .

Declare a Checker class that implements the comparator method as described. It should sort first descending by score, then ascending by name. The code stub reads the input, creates a list of Player objects, uses your method to sort the data, and prints it out properly.