steam 内实现业务逻辑编写--样例

import java.util.ArrayList;
import java.util.Comparator;
import java.util.List;

class Student {
    private String name;
    private int age;
    private int score;

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

    public String getName() {
        return name;
    }

    public int getAge() {
        return age;
    }

    public int getScore() {
        return score;
    }
}

public class Main {
    public static void main(String[] args) {
        List<Student> students = new ArrayList<>();
        students.add(new Student("Alice", 20, 85));
        students.add(new Student("Bob", 18, 90));
        students.add(new Student("Charlie", 22, 75));
        students.add(new Student("David", 19, 95));

        List<Student> filteredAndSortedStudents = students.stream()
                .filter(s -> s.getAge() >= 18 && s.getScore() > 80)
                .sorted(Comparator.comparing(Student::getScore).reversed())
                .collect(Collectors.toList());

        filteredAndSortedStudents.forEach(s -> System.out.println(s.getName() + " - " + s.getScore()));
    }
}