题解 | #成绩排序#

import java.util.Scanner;
import java.util.*;

// 注意类名必须为 Main, 不要有任何 package xxx 信息
public class Main {
    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        // 注意 hasNext 和 hasNextLine 的区别
        int n = in.nextInt();
        int orderType = in.nextInt();//0

        List<Person> list = new ArrayList<Person>();
        for (int i = 0; i < n; i++) {
            String name = in.next();
            int score = in.nextInt();
            Person person = new Person(name, score);
            list.add(person);
        }

        if (orderType == 1) { //0降序排列，1升序排列
            list.sort(Comparator.comparingInt(Person->Person.score));
        } else {
            list.sort(new Comparator<Person>() {

                @Override
                public int compare(Person o1, Person o2) {
                    // TODO Auto-generated method stub
                    return Integer.compare(o2.score, o1.score);//换个位置 降序
                }
            });
        }


       for(Person person1:list)

            System.out.println(person1.name+" "+person1.score);



    }


    static class Person {

        private  String name;
        private   int score;


        Person(String na, int sc) {
            name = na;
            score = sc;
        }
    }

}