从具有另一个对象arraylist属性的对象数组列表中获取值

import java.util.ArrayList;

public class Student {
    private String name;
    private ArrayList<Integer> grades;

    public Student(String name, ArrayList<Integer> grades) {
        this.name = name;
        this.grades = grades;
    }

    public String getName() {
        return name;
    }

    public ArrayList<Integer> getGrades() {
        return grades;
    }

    public static void main(String[] args) {
        ArrayList<Student> students = new ArrayList<>();

        // 添加学生对象到列表中
        ArrayList<Integer> grades1 = new ArrayList<>();
        grades1.add(90);
        grades1.add(85);
        Student student1 = new Student("John", grades1);
        students.add(student1);

        ArrayList<Integer> grades2 = new ArrayList<>();
        grades2.add(95);
        grades2.add(88);
        Student student2 = new Student("Emily", grades2);
        students.add(student2);

        // 查找特定学生对象并获取成绩列表
        String targetStudentName = "Emily";
        ArrayList<Integer> targetGrades = null;

        for (Student student : students) {
            if (student.getName().equals(targetStudentName)) {
                targetGrades = student.getGrades();
                break;
            }
        }

        // 输出目标学生的成绩列表
        if (targetGrades != null) {
            System.out.println("Target student: " + targetStudentName);
            System.out.println("Grades: " + targetGrades);
        } else {
            System.out.println("Target student not found.");
        }
    }
}