基于实例变量对对象数组进行排序

import java.util.Arrays;
import java.util.Comparator;

public class Main {
    public static void main(String[] args) {
        // 定义一个学生类
        class Student {
            String name;
            int score;

            public Student(String name, int score) {
                this.name = name;
                this.score = score;
            }

            public String getName() {
                return name;
            }

            public int getScore() {
                return score;
            }
        }

        // 定义学生数组
        Student[] students = {
                new Student("Alice", 80),
                new Student("Bob", 90),
                new Student("Charlie", 70)
        };

        // 使用Comparator接口进行排序，按照分数降序排序
        Arrays.sort(students, new Comparator<Student>() {
            @Override
            public int compare(Student s1, Student s2) {
                return s2.getScore() - s1.getScore();
            }
        });

        // 打印排序结果
        for (Student student : students) {
            System.out.println(student.getName() + " " + student.getScore());
        }
    }
}

import java.util.Arrays;

public class Main {
    public static void main(String[] args) {
        // 定义一个学生类
        class Student implements Comparable<Student> {
            String name;
            int score;

            public Student(String name, int score) {
                this.name = name;
                this.score = score;
            }

            public String getName() {
                return name;
            }

            public int getScore() {
                return score;
            }

            @Override
            public int compareTo(Student other) {
                return other.getScore() - this.getScore();
            }
        }

        // 定义学生数组
        Student[] students = {
                new Student("Alice", 80),
                new Student("Bob", 90),
                new Student("Charlie", 70)
        };

        // 使用Comparable接口进行排序，按照分数降序排序
        Arrays.sort(students);

        // 打印排序结果
        for (Student student : students) {
            System.out.println(student.getName() + " " + student.getScore());
        }
    }
}