题解 | #成绩排序#

import java.util.*;

/**
 * 给定一些同学的信息（名字，成绩）序列，请你将他们的信息按照成绩从高到低或从低到高的排列,相同成绩
 * <p>
 * 都按先录入排列在前的规则处理。
 * <p>
 * 例示：
 * jack      70
 * peter     96
 * Tom       70
 * smith     67
 * <p>
 * 从高到低  成绩
 * peter     96
 * jack      70
 * Tom       70
 * smith     67
 * <p>
 * 从低到高
 * <p>
 * smith     67
 * <p>
 * jack      70
 * <p>
 * Tom       70
 * peter     96
 * <p>
 * 注：0代表从高到低，1代表从低到高
 */
public class Main{
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        int sum = Integer.parseInt(scanner.nextLine());
        String symble = scanner.nextLine();
        List<Student> lists=new ArrayList<Student>();
        int number = 1;
        while (number <= sum) {
            String studentInfo = scanner.nextLine();
            number++;
            String[] strArray=studentInfo.split(" ");
            Student student=new Student();
            student.setName(strArray[0]);
            student.setRecord(Integer.parseInt(strArray[1]));
            lists.add(student);
        }
        //0从大到小
        if ("0".equals(symble))
        {
            Collections.sort(lists, new Comparator<Student>() {
                @Override
                public int compare(Student o1, Student o2) {
                    return o2.getRecord()-o1.getRecord();
                }
            });
        }else
        {
            Collections.sort(lists, new Comparator<Student>() {
                @Override
                public int compare(Student o1, Student o2) {
                    return o1.getRecord()-o2.getRecord();
                }
            });
        }

        for(Student student:lists)
        {
            System.out.println(student.getName()+" "+student.getRecord());
        }
    }

}
class Student
{
    String name;
    int record;

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public int getRecord() {
        return record;
    }

    public void setRecord(int record) {
        this.record = record;
    }
}